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.
Plumbing-PEX Tubing and Fittings
PEX tubing, crimp fittings, SharkBite and Qest fittings
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Qest compression x compression couplings
This fitting joins two pieces of the same size polybutylene, PEX, CPVC or copper tubing
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Qest compression x compression reducing couplings
This fitting joins two pieces of different size polybutylene, PEX, CPVC or copper tubing
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Qest compression x female adapters
This fitting connects to polybutylene, PEX, CPVC or copper on one end and has a female pipe thread (fipt) on the other end
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Qest compression x compression 90 degree ells
This fitting connects two pieces of polybutylene, PEX, CPVC or copper to form a 90 degree bend
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Qest compression x compression x compression tees
This fitting connects three pieces of polybutylene, PEX, CPVC or copper to form a tee
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18.40
Qest 3/4 x 3/4 x 1/2 compression teeSKU 18-122$18.4018.40
This fitting connects two pieces of 3/4 polybutylene, PEX, CPVC or copper with a 1/2 branch to polybutylene, PEX, CPVC or copper to form a tee.
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Qest compression x compression stop valves
This valve is used to shut off the flow of water in polybutylene, PEX, CPVC or copper
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Qest replacement nut assemblies
Use these nut assemblies to replace broken nuts on Qest compression fittings. Assembly includes a nut, metal lock-ring and plastic ferrule.
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PEX crimp x polybutylene adapters
PEX to Qest polybutylene crimp adapters with crimp rings. Used to couple PEX tubing to gray polybutylene tubing.
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