PARTS & FITTINGS | For Any New Construction, Repair or Project Count on ASP to be well stocked on all the essentials for plumbing and heating repairs, remodels, or upgrades — from the smallest washers and O-rings to your main shut-off valve. We’ll have pipes, tubing, couplings, valves, and faucet parts, and we’ll have it in copper, steel, brass, PVC or PEX. We stock a large inventory of commonly used components and can special order just about anything you need and get it to you fast.