Unicel 12" Filter Grid for Astral/Pac Fab/American/Hayward | PG-1902
Unicel
SKU: PG-1902
Unicel PG-1902 D.E. Filter Grid Replacement (Vertical Grid Style)
The Unicel PG-1902 is a replacement diatomaceous earth (D.E.) filter grid used in select vertical-grid D.E. pool filters. D.E. grids are the primary filtration media inside the filter tank—capturing very fine debris when properly charged with D.E. powder. Replacing a worn or torn grid helps restore water clarity and helps prevent D.E. powder from returning to the pool.
Key Features
- Replacement D.E. filter grid (vertical grid style)
- Helps restore fine-particle filtration when used with the correct D.E. charge
- Common service replacement when a grid is torn, frayed, split, or brittle
- Designed for repeated cleaning cycles and seasonal maintenance
Compatibility Notes
- Used in select vertical-grid D.E. filters that specify Unicel PG-1902 as the replacement grid.
- Best practice: match by part number and compare your existing grid’s length, top/bottom opening, and whether it is a full or partial grid.
- If you’re replacing one damaged grid, consider inspecting the full grid set—multiple grids often wear at the same pace.
Common Signs You Need a New Grid
- D.E. powder returning to the pool through the return jets
- Visible tears, seam separation, or fabric thinning
- Cloudy water or short filter cycles even after cleaning and recharging with D.E.
- Debris bypass after confirming the manifold/standpipe seals are intact
Installation Notes
- Shut off power and relieve filter pressure at the air relief before opening the tank.
- Inspect the manifold, standpipe o-ring, and air relief components while the filter is open.
- After reassembly, recharge with the correct amount of D.E. for your specific filter model.
Related Products
- Unicel PG-1902 (Search Results)
- D.E. Filter Grids (Other Sizes)
- D.E. Filter Manifolds
- D.E. Filter Tank O-Rings
- D.E. Pool Filter Powder
- D.E. Filter Cleaner
Maintenance Tips
- Clean/backwash when pressure rises about 8–10 PSI above your clean starting pressure.
- Open and inspect grids at least once per season—small tears can quickly become major bypass issues.
- Rinse grids thoroughly and avoid stiff brushes that can damage the fabric.
- Balanced water chemistry helps reduce scale and extends grid life.
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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