Collection: Piping & Fittings
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Out of Stock - Call to OrderTpi CE 18-DS - Exhaust Fan, 18" TEAO Motor, 120 V, With Shutter, 1/8 HP, 3-Speed, Gray
Vendor:National Boiler SupplyRegular price $622.38 USDRegular priceSale price $622.38 USDOut of Stock - Call to Order -
Out of Stock - Call to OrderPerfect Aire 3PORT12000-2 - 12000 Btu Portable Air Conditioner 115 V
Vendor:National Boiler SupplyRegular price $549.35 USDRegular priceSale price $549.35 USDOut of Stock - Call to Order -
Out of Stock - Call to OrderMars STD236-1UA-OB-HCP - Air curtain designed to include our HEPA filtration package
Vendor:National Boiler SupplyRegular price $1,777.78 USDRegular priceSale price $1,777.78 USDOut of Stock - Call to Order -
Mars STD242-1UD-OB-UVP - Air curtain designed to include our UVC package
Vendor:National Boiler SupplyRegular price $2,634.52 USDRegular priceSale price $2,634.52 USD -
Hessaire 6018058 - Float Valve, Plastic, 4 in W, 12 in L
Vendor:National Boiler SupplyRegular price $23.64 USDRegular priceSale price $23.64 USD -
Out of Stock - Call to OrderDwyer Instruments A1F-O-SS-1-1 - A1 F-O-Ss-1-1 Pressure Switch Range
Vendor:National Boiler SupplyRegular price $238.70 USDRegular priceSale price $238.70 USDOut of Stock - Call to Order -
Beckett BK171UL - BK171 UL Medium Condensate Pump w/Safety Switch, 115 V, 17 Foot Max Lift
Vendor:National Boiler SupplyRegular price $59.29 USDRegular priceSale price $59.29 USD -
Out of Stock - Call to OrderXpower HEPA50 - Mini Air Scrubber WF50 16 x 16 x 2 Washable Filter5.5 LB Shock Treatment
Vendor:National Boiler SupplyRegular price $159.13 USDRegular priceSale price $159.13 USDOut of Stock - Call to Order -
Xpower HEPA-300-406PV - AP1500 D Air Purification System Stage 4 VShaped HEPA Filter
Vendor:National Boiler SupplyRegular price $178.75 USDRegular priceSale price $178.75 USD -
Out of Stock - Call to OrderTpi CE 18-DV - Exhaust Fan, 18" TEAO Motor, 120 V, With Venturi, 1/8 HP, 3-Speed, Gray
Vendor:National Boiler SupplyRegular price $622.38 USDRegular priceSale price $622.38 USDOut of Stock - Call to Order -
Testo 0564 1560 01 - Wireless connection and operation with digital manifolds and Smart App via Bluetooth
Vendor:National Boiler SupplyRegular price $500.30 USDRegular priceSale price $500.30 USD -
Out of Stock - Call to OrderPatterson V8A-220 - Ceiling Fan, HVLS, 220v, Single Phase, 8' Dia,1/2 Hp, w/ 2' Downrod
Vendor:National Boiler SupplyRegular price $4,367.62 USDRegular priceSale price $4,367.62 USDOut of Stock - Call to Order -
Out of Stock - Call to OrderMars STD260-2UD-OB-UVP - Air curtain designed to include our UVC package
Vendor:National Boiler SupplyRegular price $3,249.28 USDRegular priceSale price $3,249.28 USDOut of Stock - Call to Order -
Out of Stock - Call to OrderMars LPV242-1UD-OB-UVP - Air curtain designed to include our UVC package
Vendor:National Boiler SupplyRegular price $1,878.06 USDRegular priceSale price $1,878.06 USDOut of Stock - Call to Order -
Out of Stock - Call to OrderKwikool KIB4221-2 - Portable Precision Cooling, 3.5 ton/ 230 V/ 40 AMP
Vendor:National Boiler SupplyRegular price $8,252.66 USDRegular priceSale price $8,252.66 USDOut of Stock - Call to Order -
Out of Stock - Call to OrderDwyer Instruments RMA-11-TMV - Flowmeter, range 30-200 cc/min air.
Vendor:National Boiler SupplyRegular price $139.51 USDRegular priceSale price $139.51 USDOut of Stock - Call to Order
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Commercial-Grade Pipe, Tubing & Industrial Fittings
Streamline your commercial mechanical builds, hydronic boiler loops, and drainage installations with our comprehensive catalog of commercial-grade piping and fittings. Sourced directly from top-tier distribution networks, our inventory features heavy-wall Type L and Type M rigid copper tubing, precision-engineered wrot copper sweat fittings, Schedule 40 PVC pressure pipe, and gravity-fed PVC DWV drainage components.
Every product line is meticulously structured to comply with rigid engineering baselines—including ASTM B88 tolerances for copper distribution and ASTM D1785 / ASTM D2661 standards for durable polymer systems. Engineered to meet strict institutional mechanical codes, our multi-variant inventory scales seamlessly from 1/2" up to 4" nominal sizing configurations to ensure absolute compatibility at the job site.
Engineered for High-Performance Applications:
- Hydronic & Boiler Feed Piping: Heavy-wall copper lines designed for optimal thermal conductivity and structural pressure resistance.
- Potable Water Distribution: Lead-free compliant infrastructure certified to NSF standards.
- Process Plumbing & Drainage: Complete Schedule 40 and DWV systems built to resist scaling, corrosion, and high-velocity friction loss.