CHECK VALVE 1-1/2" SLIP

The 1-1/2" Slip Check Valve is a vital one-way valve designed to prevent backflow in ponds, fountains, aquaponics, irrigation, and general water systems. With 1-1/2" slip connections on both ends, this valve can be glued directly into standard PVC pipe, creating a secure, leak-proof seal that allows water to flow in only one direction.

This check valve is essential for protecting pumps and filtration equipment from water reversal when the system is shut off or during power outages. The internal flapper or spring-loaded mechanism ensures quick sealing without restricting flow, making it ideal for low- to medium-pressure water lines.

✅ Key Features:

• 1-1/2" Slip x Slip Ends – Easily solvent-weld into PVC systems

• One-Way Flow Control – Prevents reverse flow to protect equipment

• PVC Construction – Durable, weather-resistant, and built for long life

• Minimal Flow Resistance – Maintains system efficiency

• Works Vertically or Horizontally (varies by valve model – check manufacturer specs)

• Free Shipping is valid for orders with a subtotal exceeding $199 and all orders will be shipped via UPS. Items purchased for delivery after 3pm will ship the following day. Items purchased for delivery after 3pm on Friday will ship Monday.
• Koi Fish only ship Monday- Wednesday. For orders placed after 3pm on Wednesday, the order will be shipped the following Monday.
• For Motor Freight (LTL) Shipments, oversized or heavy items unsuitable for traditional parcel delivery will be dispatched through a motor freight carrier, as indicated on the product page. Once the carrier receives your order, they will reach out to arrange a delivery time. An individual aged 18 or older must be present to sign for the delivery.
• You may return or exchange an unused or unopened item for a refund (excluding shipping and handling charges) within 30 days of purchase. Following 30 days, the item may be returned in exchange for a store credit. Used chemicals and fish food are not returnable. In addition, all sales on Japanese Koi are final and non-refundable. Should you have any questions or concerns when your fish arrive, please call 908-420-9908.