Magic Plastics 0801-20H-RK Replacement Kit – 2″ Corrosion-Resistant Check Valve Rebuild

Part # 0801-20H-RK — a complete internal rebuild kit for the Magic Plastics 2″ CR2 corrosion-resistant check valve. This kit restores proper one-way flow, prevents backflow, and helps maintain efficient circulation in pool and spa plumbing systems.

Key Features

Includes flap/gate, shaft, O-ring, lid gasket and spring needed to rebuild the internal assembly.
Designed specifically for the Magic Plastics 2″ CR2 check valve body.
Chemical-resistant materials ensure dependable performance in pool and spa environments.
Restores proper sealing and movement to eliminate sticking, leaking or reverse flow.
Cost-effective alternative to replacing the entire valve.

Typical Applications

Ideal when a check valve begins to leak, stick, rattle, or allow water to drain backward through the line. Commonly used in systems serving heaters, chlorinators, suction-side cleaners, and dedicated return lines requiring reliable backflow prevention.

Installation & Compatibility Notes

Turn off pump and relieve system pressure before opening the valve. Remove the lid and old components, clean the valve body thoroughly, then install the new flap, spring, shaft, O-ring and gasket. Reassemble the lid, ensuring a proper seal. Restore circulation and confirm correct one-way operation without leaks.

Why Choose This Rebuild Kit?

This kit provides all necessary components to restore near-original valve performance, extending the service life of the CR2 valve while maintaining safe and efficient water flow.

Maintenance Tips

Inspect check valves at least annually for wear or buildup that may restrict movement.
Replace internal components at the first sign of leaking or reverse flow.
Keep O-rings lightly lubricated with a pool-safe silicone lubricant.
Rinse internal parts during routine maintenance to prevent scale and debris accumulation.

Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

We do not ship on Saturday or Sunday.
Orders totaling more than $300 will require signature confirmation upon delivery.
We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
Expedited shipping options are available at checkout.

Return Policy:

Products that are received damaged will receive a refund in store credit.
Most products are eligible for return within 30 days of receipt, except where noted below.
To initiate a return, please complete an RMA form prior to sending your item back.
Original shipping costs are non-refundable and will be deducted from the return credit.
Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
Some returns will be charged an automatic 15% restocking fee.
We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
Please complete the return form to receive your RMA number and return shipping label.
Chemical products are not eligible for return under any circumstances.
The Pentair Colorsync 618031 is not eligible for return.
Pool cleaners are not eligible for return.
Opened seals and o-rings are not eligible for return.
Capacitors are not eligible for return.
Plastic popup tools are not eligible for return.
Automation components and circuit boards are not eligible for return.
If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.