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Qest Compression Fittings

Qest compression fittings  by Zurn can be used to connect gray polybutylene, PEX, CPVC or copper tubing in any combination.  These are one of the few fittings that can be used with gray polybutylene plastic tubing.  Polybutylene was often used in manufactured homes.

Fitting sizes listed are for the inside diameter of the tubing.  IE: The 1/2 Qest coupling is for 1/2 inside diameter tubing which is 5/8 outside diameter.

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Qest compression x compression couplings
Qest compression x compression couplings
heading-Qest-couplings Qest compression x compression couplings
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Qest compression x compression reducing couplings
Qest compression x compression reducing couplings
heading-Qest-reducer couplings Qest compression x compression reducing couplings
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Qest compression x male adapters
Qest compression x male adapters
heading-Qest-male adapters Qest compression x male adapters
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Qest compression x female adapters
Qest compression x female adapters
heading-Qest-female adapters Qest compression x female adapters
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Qest compression x compression 90 degree ells
Qest compression x compression 90 degree ells
heading-Qest-90 ells Qest compression x compression 90 degree ells
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Qest compression x compression x compression tees
Qest compression x compression x compression tees
heading-Qest-tees Qest compression x compression x compression tees
18.40
Qest 3/4 x 3/4 x 1/2 compression tee
Qest 3/4 x 3/4 x 1/2 compression teeSKU 18-122$18.4018.40
18-122 Qest 3/4 x 3/4 x 1/2 compression tee
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Qest compression x compression stop valves
Qest compression x compression stop valves
heading-Qest-valves Qest compression x compression stop valves
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Qest replacement nut assemblies
Qest replacement nut assemblies
heading-Qest-nut assemblies Qest replacement nut assemblies
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PEX crimp x polybutylene adapters
PEX crimp x polybutylene adapters
Heading-PEX-crimp-polybutylene-adapters PEX crimp x polybutylene adapters