[Wide Compatibility]: The PVC pipe adapter comes with 4 pieces of 1.5 inch / 3.8 cm threaded fittings and can be widely used for 1-1/4 inch or 1-1/2 inch pipes. [Wide Compatibility]: The PVC pipe adapters are widely compatible with SPX1091Z7 and SPX1091Z4 pipe adapters, making them excellent pipe adapter replacements. [Functional PVC Fittings] The PVC pipe fittings are a great inlet and outlet adapter, making them ideal for most pumps, filters, skimmers, etc. [Easy to [Use]: Providing you with many conveniences, the PVC pipe connectors are suitable for connecting pool filter hoses to a filter or pump, or connecting backwash hoses to a skimmer. ♕ [Reliable Material]: Strong, reliable and durable for long-term use, the replacement PVC pipe connectors are made of high-quality PVC material.