Hayward ProSeries Valve/Tank O-Ring | GMX600F

The Hayward ProSeries™ GMX600F Valve/Tank O-Ring is a high-quality replacement part designed to ensure a secure, leak-free seal between your pool filter valve and tank. As a critical component in maintaining your sand filter’s performance and efficiency, this genuine Hayward O-Ring helps prevent water and air leaks that can compromise filtration and system pressure.

Manufactured to Hayward’s exacting standards, the GMX600F O-Ring offers durability and reliable sealing, making it an essential part of routine maintenance or repairs for your pool filtration system. It’s compatible with a wide range of Hayward ProSeries™ and ProSeries™ Plus sand filters, ensuring versatile application across multiple models and filter configurations.

Model: GMX600F
Product Type: Valve/Tank O-Ring
Purpose: Creates a tight seal between valve and tank to prevent leaks
Material: High-quality, durable rubber construction
Genuine Hayward product for reliable performance
Compatible With:

Pro Series™ S270T2, S310T2, S360T2
S144T, S180T, S210T, S220T, S220T2, S230T, S244T, S244T2, S270T
S164T, S166T, S210S, S244S, S310S Sand Filters
S245T, S190T Sand Filters
Pro Series™ Plus S311SX, S311SXV, S360SX Sand Filters

Essential for maintaining proper filter pressure and preventing leaks
Ideal for both new installations and replacement maintenance

SKU: GMX600F

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.