Waterway 9" x 9" Grate & Frame, Square, White | 640-4790V
Waterway
SKU: 640-4790 V
Waterway 640-4790V Grate & Frame – 9″ × 9″
The Waterway 640-4790V is a square pool main drain or suction outlet cover featuring a 9″ × 9″ grate mounted in a 10.375″ × 10.375″ frame. It is designed for in-ground pool systems requiring a durable, high-flow drain cover with a clean, finished look.
Key Features
- Square grate and frame sized for 9″ × 9″ suction outlets.
- High open-area design to support strong flow rates in residential or commercial pools.
- Durable construction suitable for gunite, concrete and similar in-ground pool structures.
- OEM-style replacement for maintaining safety and proper water movement.
Technical Specifications
- Part Number: 640-4790V
- Grate Opening Size: 9″ × 9″
- Frame Dimension: 10.375″ × 10.375″
- Open Area: Approximately 43.6 square inches
- Application: Main drain or suction outlet cover for in-ground pool systems
Installation & Compatibility Notes
Shut off the pool pump and remove the existing cover. Inspect the mounting area for clean and level seating. Position the new frame, secure it with the appropriate hardware, and snap or screw the grate into place. Confirm that the cover sits flush and has no play. Restore circulation and verify proper operation.
Maintenance Tips
- Check the grate yearly for cracks, deformation or loose hardware.
- Ensure mounting screws remain tight and free of corrosion.
- Replace immediately if damage is found to maintain safety and flow performance.
Why Choose This Drain Cover?
The Waterway 640-4790V provides a reliable and durable replacement for square main drain openings, delivering strong flow capacity and long-term durability. Its straightforward installation and sturdy design make it a dependable choice for pool professionals and homeowners.
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.
Related Products
