Add to Cart Quick view SALE Flo Control Expansion Coupling, 2-1/2" Slip/Spigot $99.95 $44.95 Flo Control Expansion Couplings. For repairing pipe in limited space areas.ASTM D-2466 Socket Type Poly (Vinyl Chloride)(PVC) Plastic Pipe Fittings, Sch 40. Add to Cart Add to Wishlist