Laing E-10 EcoCirc 6050U0014 Spa Circulation Pump – 230V 3/4″ MPT Threaded

�� Laing E-10 EcoCirc 6050U0014 Spa Circulation Pump – 230V 3/4″ MPT Threaded Secure threaded connections meet 230V ECM efficiency — zero-seal magnetic drive with built-in dry run protection �� Product Overview The Laing E-10 EcoCirc 6050U0014 is a 230V single-speed spa circulation pump with 3/4″ Male Pipe Thread (MPT/NPT) connections and a 4-foot bare cord included, designed for continuous 24/7 low-flow heater circulation on 230V spa systems equipped with threaded plumbing. This is the 230V companion to the 6050U0013 (115V, 3/4″ MPT) — identical pump body, identical threaded wet end, with the motor wound for 230V operation instead of 115V. Threaded MPT connections screw directly into female-threaded fittings for a secure, permanent, leak-resistant connection — unlike barb connections that rely on hose clamps. This makes the 6050U0014 the correct choice for any 230V spa with rigid threaded plumbing or factory-installed female threaded ports. The 3/4″ MPT threads have a physical outside diameter of 1″ — standard for 3/4″ NPT pipe threads. Powered by advanced Electronically Commutated Motor (ECM) technology, this pump consumes up to 40% less energy than the SM909 and SM1212 series it directly replaces. The magnetically driven open impeller eliminates the traditional shaft seal entirely — removing the number one failure point in conventional circulation pumps. With no mechanical seal to leak or wear out, the E-10 delivers truly maintenance-free motor operation. The clog-resistant open impeller handles debris that would stall closed-impeller pumps, while the 32-bit motor with side vents provides improved cooling for extended service life. Built-in dry run protection via an embedded microprocessor automatically shuts down the pump if operated without water, and a soft start feature (~3 seconds) reduces mechanical stress on every startup cycle. Delivering up to 14 GPM with a maximum head of 20 feet, the E-10 fits the tightest equipment compartments at under 5 lbs and whisper-quiet operation under 50 dB. ⭐ Key Features ✅ 3/4″ MPT Threaded Connections — Secure, leak-resistant male pipe thread screws into female fittings for permanent, reliable plumbing ✅ 230V / 65W ECM Technology — Electronically Commutated AC/DC/AC Spherical Motor consumes 40% less energy than previous SM909/SM1212 series ✅ 14 GPM Maximum Flow — Optimal flow for low-flow heater circulation systems with 20 ft maximum head ✅ Magnetically Driven Open Impeller — NO shaft seal to leak or replace, plus clog-resistant PPO construction for trouble-free operation ✅ Built-In Dry Run Protection — Embedded microprocessor automatically detects no-water condition and shuts down to prevent damage ✅ Soft Start Technology — Approximately 3-second gradual startup reduces mechanical stress and extends pump life ✅ 4-Foot Bare Cord INCLUDED — Pre-wired with 3 wires, NO connectors on cord end — wire directly to spa control system ✅ 32-Bit Motor with Side Vents — Advanced motor design with improved heat dissipation for longer service life ✅ High Density Ceramic Bearing Ball & Graphite Impeller — Engineered for continuous 24/7 operation ✅ Replaces SM909-NT 230V Series — Direct replacement for 909-NT-18 (6917) and 909-NT-26 (6918) ✅ 50/60 Hz Compatible — Works on both domestic (60 Hz) and international (50 Hz) electrical systems ✅ 1-Year Manufacturer Warranty — Full coverage from Laing Thermotech / Xylem �� Technical Specifications Specification Value Manufacturer Laing Thermotech (Xylem) Series E-10 EcoCirc Model E10-NSTNNN2W-20 / E10-NSTN2W-20 / E10-NSTNDNN2W-01 / E10-NSTNDNN2W-20 Primary Part Number 6050U0014 Alternate Part Number 73999 UPC 733886739992 Pump Type Spa Circulation Pump — 24/7 Continuous Duty Motor Type Electronically Commutated AC/DC/AC Spherical Motor (ECM) Impeller Type Magnetically Driven, Open — Clog Resistant Impeller Material PPO (Polyphenylene Oxide) / Graphite with High Density Ceramic Bearing Ball Shaft Seal NONE — Magnetically Driven (No Seal Required) Voltage 230V Frequency 50/60 Hz (Domestic and International) Phase Single Phase Wattage 65W RPM 1,800–3,100 (Variable Internal Speed Range) Speed Single Speed Maximum Flow Rate 14 GPM Maximum Head 20 ft Maximum Working Pressure 50 PSI Maximum Temperature 140°F (60°C) Rotation Counter-Clockwise (Viewed from Motor End) Suction Connection 3/4″ MPT (Male Pipe Thread) — Center Suction Suction Physical Dimension 1″ OD (Standard for 3/4″ NPT Threads) Discharge Connection 3/4″ MPT (Male Pipe Thread) — Side Discharge Discharge Physical Dimension 1″ OD (Standard for 3/4″ NPT Threads) Volute Fastening 4 Bolts and 4 Nuts Wet End Material Thermoplastic Discharge Positions 4 Angles via Built-In Mounting Bracket Dimensions (L × H × W) 6″ × 4.88″ × 4.31″ Weight Under 5 lbs (1.7 kg) Noise Level Under 50 dB — Whisper Quiet IP Rating IP55 Power Cord 4-Foot Bare Cord INCLUDED (3 Wires, NO Connectors) Mounting Bracket INCLUDED Mounting Position Horizontal, or Vertical with Motor End Down Drain Plug None Protection Features Dry Run Protection, Automatic Overload Protection, Soft Start (~3 sec) Warranty 1-Year Manufacturer Warranty ⚡ Electrical Requirements Electrical Spec Requirement Supply Voltage 230V (220V/240V same standard) Frequency 50/60 Hz Phase Single Phase Wattage 65W Power Cord 4-Foot Bare Cord INCLUDED (3 Wires, NO Connectors on Cord End) Wiring 3 Wires: Hot, Hot, Ground (230V — No Neutral) ⚠️ CRITICAL — 230V ONLY: This pump operates on 230V ONLY. Do NOT connect to a 115V circuit. Using the wrong voltage will result in the pump not operating or potential damage. For 115V spas with 3/4″ MPT threaded connections, order the Laing E-10 model 6050U0013 / 74009 (115V, 3/4″ MPT). ⚠️ 230V WIRING: 230V pumps use TWO hot wires plus ground — there is NO neutral wire. The 4-foot bare cord has 3 wires with NO connectors on the cord end. Wire directly to your spa control system per the manufacturer’s wiring diagram. �� Compatibility Guide CRITICAL: MPT (Threaded) vs Barb — NOT Interchangeable Feature MPT (Threaded) — This Pump Barb — 6050U0016 Connection Type Male Pipe Thread (3/4″ NPT) Hose Barb (3/4″) How It Connects Screws into female threaded fitting Slides into flexible hose, secured with clamp Physical OD 1″ (standard for 3/4″ NPT) 3/4″ Best For Rigid threaded plumbing, female threaded ports Flexible tubing, hose connections Seal Method Teflon tape or pipe thread sealant Hose clamp compression ⚠️ Threaded and barb connections are NOT interchangeable. If your spa has female threaded ports, order this pump (6050U0014). If your spa has flexible hose connections, order 6050U0016 (3/4″ barb, 230V) or 6050U0010 (1″ barb, 230V). Using the wrong connection type results in leaks or inability to install. 230V vs 115V MPT — Same Pump, Different Voltage Feature 6050U0014 (This Pump) — 230V 6050U0013 — 115V Voltage 230V 115V Wattage 65W 62W Wiring Hot, Hot, Ground (No Neutral) Hot, Neutral, Ground Connections 3/4″ MPT 3/4″ MPT Max Flow Rate 14 GPM 15 GPM Max Head 20 ft 20 ft Motor / Protection Identical ECM Identical ECM Dimensions 6″ × 4.88″ × 4.31″ 6″ × 4.88″ × 4.31″ Cord 4 ft Bare — NO Connectors 4 ft Bare — NO Connectors �� Both pumps are physically identical with the same ECM motor platform and threaded wet end. The ONLY difference is the voltage winding. Choose 230V (this pump) or 115V (6050U0013) based on your spa’s electrical supply. Laing E-10 Family — All 230V Models Part Number Voltage Connection HydroQuip # 6050U0014 / 73999 (This Pump) 230V 3/4″ MPT (Threaded) 10-0125 / LHB07100140 6050U0016 / 73979 230V 3/4″ Barb 10-0121 / LHB07100138 6050U0010 / 74079 230V 1″ Barb 10-0123 / LHB07100142 Laing E-10 Family — Complete Lineup (115V 230V) Part Number Voltage Connection 6050U0013 / 74009 115V 3/4″ MPT 6050U0014 / 73999 (This Pump) 230V 3/4″ MPT 6050U0015 / 73989 115V 3/4″ Barb 6050U0016 / 73979 230V 3/4″ Barb 6050U0011 / 74069 115V 1″ Barb 6050U0010 / 74079 230V 1″ Barb SM909-NT 230V Threaded Series — Replaced By E-10 The Laing E-10 directly replaces ALL previous Laing SM909-NT 230V threaded circulation pumps. Previous Model Sundance/Jacuzzi # Replaced By SM-909-NT-18 230V 6917 E-10 6050U0014 (Direct) SM-909-NT-26 230V 6918 E-10 6050U0014 (Direct) SM909NT-240 — E-10 6050U0014 (Direct) Compatible Spa Brands (230V with Threaded Plumbing) ♨️ Sundance Spas — 230V models with threaded plumbing connections ♨️ Jacuzzi — 230V models with threaded plumbing connections ♨️ L.A. Spas — 230V threaded models ♨️ Marquis Spas — 230V threaded models ♨️ Atlantic Coast Spas — 230V threaded models ♨️ Gatsby Spas — 230V threaded models ♨️ Hawkeye Spas — 230V threaded models ♨️ Royal Spas — 230V threaded models ♨️ Saratoga Spas — 230V threaded models ♨️ And other 230V spa manufacturers using threaded circulation plumbing �� Alternate Part Numbers & Cross-References Primary Part Numbers Part Number Description 6050U0014 Laing Primary Part Number 73999 Laing Alternate Part Number E10-NSTNNN2W-20 Laing Full Model Number (Hot Tub Warehouse, Sunplay) E10-NSTN2W-20 Laing Model Number E10-NSTNDNN2W-01 Laing Model Number (Spa Pumps and More) E10-NSTNDNN2W-20 Laing Model Number (Backyard Pool Superstore) LA73999 Laing Industry Code (SpaParts.com) 733886739992 Primary UPC Code HydroQuip Cross-References Part Number Notes 10-0125 HydroQuip Part Number 10-0125-K HydroQuip Kit Version LHB07100140 HydroQuip Internal Code LHB07100075 HydroQuip Internal Code (Previous) Allied Innovations Cross-References Part Number Notes 1-00-0172A Allied Part Number (SpaParts.com) Sundance / Jacuzzi Cross-References Part Number Notes 6510 Sundance/Jacuzzi 6513 Sundance/Jacuzzi 6917 SM-909-NT-18 230V 6918 SM-909-NT-26 230V 6921 Sundance/Jacuzzi Previous SM909-NT 230V Model Codes Part Number Notes SM909NT-240 SM909 Threaded 230V Model Code SM-909-NT-18 (230V) SM909 Threaded 230V SM-909-NT-26 (230V) SM909 Threaded 230V Other Industry Cross-References Part Number Notes 34-158-1456 Horizon Industry Part Number 906930534 Industry Cross-Reference 9338-21 Industry Cross-Reference 9339-10 Industry Cross-Reference 9339-11 Industry Cross-Reference 9339-13 Industry Cross-Reference 9339-17 Industry Cross-Reference UPC Cross-References UPC Notes 733886739992 Primary UPC 733886691702 UPC Cross-Reference 733886691801 UPC Cross-Reference ��️ Installation Requirements What’s in the Box ✅ Laing E-10 EcoCirc Circulation Pump (230V, 3/4″ MPT) ✅ 4-Foot Bare Cord (Pre-Wired, 3 Wires, NO Connectors on Cord End) ✅ Built-In Mounting Bracket ❌ Unions / Fittings — NOT INCLUDED (Order Separately If Needed) Mounting Requirement Specification Mounting Position Horizontal, or Vertical with motor end down Bracket Built-in mounting bracket with 4 discharge angle positions Base Solid, level surface Ventilation Side vents must remain clear for motor cooling Access Sufficient clearance for service and maintenance Plumbing Connection Size Suction 3/4″ MPT (1″ Physical OD) — Center Discharge 3/4″ MPT (1″ Physical OD) — Side Volute Fastening 4 Bolts and 4 Nuts Threaded Connection Installation Tips ⚠️ Apply Teflon tape or pipe thread sealant to male threads before screwing into female fittings. ⚠️ Hand-tighten first, then wrench-tighten 1–2 additional turns only. ⚠️ Do NOT over-tighten — the thermoplastic wet end can crack under excessive torque. If you see cracking around the thread area, the wet end has been damaged and may need replacement. ⚠️ Female fittings must accept standard 3/4″ NPT threads (1″ physical outside diameter). General Installation Notes ⚠️ Pump must be installed below water level (flooded suction) to operate properly. ⚠️ Built-in dry run protection will shut down the pump if operated without water — however, always ensure flooded suction before starting. ⚠️ 230V WIRING: 4-foot bare cord has 3 wires with NO connectors on the cord end. Wire directly to spa control system: Hot, Hot, Ground — there is NO neutral wire on 230V. ⚠️ Soft start feature provides approximately 3-second gradual startup — this is normal operation, not a fault. ⚠️ Can be mounted horizontally or vertically with the motor end pointing down. Do NOT mount with motor end up. ⚠️ Counter-clockwise rotation when viewed from the motor end — do not attempt to reverse. ⚠️ GFCI protection is required by the National Electrical Code (NEC) for all hot tub and spa installations. ⚠️ Keep motor side vents clear of debris for proper cooling. ⚠️ 230V ONLY — verify your spa’s voltage before ordering. For 115V with 3/4″ MPT, order 6050U0013 / 74009. �� Maintenance Guide Routine Maintenance Task Frequency Notes Check for leaks Monthly Around threaded connections Inspect threaded connections Monthly Check for weeping — re-apply Teflon tape if needed Check flow rate Monthly Reduced flow indicates blockage Inspect motor side vents Quarterly Keep clear of debris for cooling Verify quiet operation Quarterly Unusual noise indicates bearing wear Check mounting bracket Quarterly Tighten if loose Clean open impeller area As Needed Remove any debris if flow decreases Warning Signs — Replace Pump If: Unusual noise (grinding, humming, rattling) Motor overheating excessively Reduced or no water flow despite clear suction Motor trips breaker repeatedly Pump fails to start after soft start period Dry run protection activates repeatedly with water present Cracked wet end from over-tightening threaded connections Magnetically Driven Impeller — NO Seal Replacement Needed The Laing E-10 uses a magnetically driven impeller with NO mechanical shaft seal. Unlike conventional shaft-seal circulation pumps (Gecko CMHP, Waterway Iron Might, Balboa) where the seal is the most common failure point, the E-10’s magnetic drive completely eliminates this component. There is no seal to leak, wear out, or replace — ever. �� Ideal Applications Application Suitability Notes ♨️ 24/7 Spa Circulation (230V) ✅ Yes — Primary Use Continuous duty low-flow heater circulation ♨️ Low-Flow Heater Systems ✅ Yes — Primary Use 14 GPM max flow, 20 ft max head ♨️ Spas with Threaded Plumbing (230V) ✅ Yes — Primary Use 3/4″ MPT screws into female threaded fittings ♨️ Replacement SM909-NT 230V ✅ Yes — Direct Replaces 909-NT-18 (6917) and 909-NT-26 (6918) ♨️ Sundance / Jacuzzi Threaded (230V) ✅ Yes 230V models with threaded circulation plumbing ♨️ L.A. Spas / Marquis Threaded (230V) ✅ Yes 230V threaded models ♨️ Atlantic Coast / Gatsby / Hawkeye / Royal / Saratoga (230V) ✅ Yes 230V threaded models ♨️ Ozone Treatment Systems ✅ Yes Compatible with ozone injection ♨️ Saltwater Spa Systems ✅ Yes Saltwater compatible �� 3/4″ Barb Plumbing ❌ No — Wrong Type Use 6050U0016 / 73979 (3/4″ barb, 230V) �� 1″ Barb Plumbing ❌ No — Wrong Type Use 6050U0010 / 74079 (1″ barb, 230V) �� 115V Spa ❌ No — 230V Only Use 6050U0013 / 74009 (3/4″ MPT, 115V) �� 1-1/2″ MBT Plumbing ❌ No Use Gecko Aqua-Flo CMHP for 1-1/2″ connections ❓ Frequently Asked Questions Q: What is MPT and how does it differ from barb connections? A: MPT stands for Male Pipe Thread (also called NPT — National Pipe Thread). The male threads screw into a female threaded fitting for a secure, permanent connection. Barb connections slide into flexible hose and are secured with a hose clamp. MPT and barb are NOT interchangeable — you must match the connection type to your spa’s existing plumbing. Q: What is the physical outside diameter of the threads? A: 3/4″ MPT threads have a physical outside diameter of 1″. This is standard for all 3/4″ NPT pipe threads — the 3/4″ refers to the nominal pipe size, not the physical measurement. Q: What is the flow rate of this pump? A: Maximum 14 GPM with a maximum head of 20 feet. Designed for continuous 24/7 low-flow heater spa circulation. Q: What is the wattage? A: 65W at 230V. Ultra-low energy consumption for pennies-per-day continuous 24/7 operation. Q: Does this pump come with a power cord? A: Yes. A 4-foot bare cord is included with 3 wires and NO connectors on the cord end. Wire directly to your spa control system connecting Hot, Hot, and Ground. Q: How do I wire this 230V pump? A: Connect Hot, Hot, and Ground — there is NO neutral wire on 230V circuits. Both hot wires carry voltage. Have all work performed by a licensed electrician. Q: Can I use this pump if my spa has barb connections? A: No. Threaded (MPT) and barb connections are NOT interchangeable. For 3/4″ barb on 230V, use 6050U0016 / 73979. For 1″ barb on 230V, use 6050U0010 / 74079. Q: Do I need Teflon tape on the threads? A: Yes. Apply Teflon tape or pipe thread sealant to the male threads before screwing into female fittings. Hand-tighten first, then wrench-tighten 1–2 additional turns. Do NOT over-tighten — the thermoplastic wet end can crack under excessive torque. Q: What is the difference between this pump and the 6050U0013? A: They are the identical E-10 pump body and threaded wet end — same motor platform, same protection features, same connections. The ONLY difference is the voltage winding: 6050U0014 is 230V (this pump), 6050U0013 is 115V. Choose based on your spa’s electrical supply. Q: Does this replace the SM909-NT 230V series? A: Yes. The E-10 directly replaces all SM909-NT 230V threaded models, including the 909-NT-18 (6917) and 909-NT-26 (6918), consuming up to 40% less energy. Q: Does this pump have a shaft seal? A: No. The E-10 uses a magnetically driven impeller that completely eliminates the mechanical shaft seal. There is no seal to leak, wear out, or replace. Q: Can I mount this pump vertically? A: Yes. The E-10 can be mounted horizontally or vertically with the motor end pointing down. Do NOT mount with motor end up. Q: Is this pump quiet? A: Yes, extremely. The E-10 operates at under 50 dB — virtually silent during operation. Q: Do I need a GFCI breaker? A: Yes. GFCI protection is required by the National Electrical Code (NEC) for all hot tub and spa installations, including 230V circuits. Q: What warranty is included? A: 1-year manufacturer warranty from Laing Thermotech / Xylem. Contact Parts4Tubs for full warranty terms and support. �� Why Choose the Laing E-10 EcoCirc 6050U0014 ✅ 3/4″ MPT Threaded Connections — Secure, leak-resistant permanent plumbing for 230V threaded spa systems ✅ ECM Motor Technology — 40% more energy-efficient than the SM909/SM1212 series it replaces ✅ Built-In Dry Run Protection — Embedded microprocessor prevents costly damage from operating without water ✅ Soft Start Technology — Gradual 3-second startup reduces mechanical stress and extends pump life ✅ Magnetically Driven Open Impeller — NO shaft seal to leak or replace, PLUS clog-resistant PPO construction ✅ Whisper-Quiet Operation — Under 50 dB for virtually silent running ✅ Direct SM909-NT 230V Replacement — Drop-in for 909-NT-18 (6917) and 909-NT-26 (6918) ✅ Horizontal or Vertical Mounting — Flexible installation with 4 discharge angle positions ✅ 50/60 Hz Compatible — Works on both domestic and international electrical systems ✅ Compact and Lightweight — Under 5 lbs fits tight equipment compartments ✅ Laing Thermotech / Xylem Quality — Decades of proven reliability in spa circulation ✅ 1-Year Manufacturer Warranty — Full coverage for peace of mind �� Why Buy from Parts4Tubs ✅ Fast shipping across the United States ✅ Expert advice from spa and hot tub specialists ✅ Competitive pricing ✅ Full warranty support ✅ Hassle-free returns ✅ Complete Laing E-10 family in stock — all voltages (115V, 230V), all connection types (barb, MPT) ✅ Dedicated customer service team ✨ Summary The Laing E-10 EcoCirc 6050U0014 is a 230V spa circulation pump with 3/4″ MPT threaded connections — the high-voltage companion to the 6050U0013. Featuring advanced ECM technology at just 65W, secure threaded plumbing with 1″ physical OD, built-in dry run protection, soft start, a magnetically driven clog-resistant open impeller with no shaft seal, and a 4-foot bare cord included, this pump directly replaces all SM909-NT 230V threaded series models. Compatible with Sundance, Jacuzzi, L.A. Spas, Marquis, and other brands using 230V threaded circulation plumbing. Order from Parts4Tubs today for fast shipping and expert support.