Zodiac Jandy Universal Half Union Kit | R0522900
Jandy
SKU: R0522900
Zodiac R0522900 Universal Half-Union Kit
Part # R0522900 — a replacement half-union assembly for select Zodiac / Jandy pool and spa equipment. This union helps ensure a secure, leak-free connection for filtration systems, pumps, and heaters where compatible plumbing is required.
Key Features
- “Universal-fit” design compatible with many Zodiac/Jandy systems.
- Includes union nut and O-ring/gasket for reliable sealing.
- Designed to resist pool chemicals and normal wear for long-lasting performance.
- Suitable for cartridge filters, D.E. filters, and compatible heater or pump plumbing connections when plumbing specs match.
- Easy to install — replaces existing union without major plumbing modifications.
Typical Applications
Used when an existing union is cracked, leaking, stripped, or no longer seals properly. Also useful as a preventive maintenance item when servicing filters, heaters, or pumps to ensure connections remain watertight.
Installation & Compatibility Notes
Shut off pump power and relieve system pressure before servicing. Drain water from the plumbing line. Remove the old union components and clean mating surfaces thoroughly. Install the new union nut and O-ring/gasket kit, tighten by hand (avoid over-tightening), then restore circulation and check for leaks under pressure.
Why Choose This Union Kit?
The R0522900 kit provides a cost-effective way to restore or maintain sealing integrity in older or worn systems without replacing entire valves or filter assemblies. Its universal-fit design accommodates multiple filter and heater families, offering flexibility and convenience for pool maintenance.
Maintenance Tips
- Inspect union nut and O-ring annually for wear or cracking — replace if seal appears compromised.
- Ensure sealing surfaces are clean and free of debris before installing a new union to prevent leaks.
- Hand-tighten only; overtightening can damage threads or deform sealing surfaces.
- Keep a spare union kit on hand — saves time when quick repairs are needed.
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.
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