Pentair PLM Air Bleed Assembly | 24800-0121
Pentair
SKU: 24800-0121
Pentair 24800-0121 Air-Bleed Assembly — Replacement for PLM Filter Systems
The Pentair 24800-0121 is an OEM air-bleed assembly designed for use with Sta-Rite / Pentair System:2 (PLM) series sand filters. This small but essential component helps purge trapped air from the filter tank when filling or priming the system — ensuring proper water flow and preventing air-lock issues.
Key Features
- Original-equipment air-bleed assembly — exact fit for PLM filter tanks (PLM100, PLM125, PLM150, PLM175, PLM200, PLM300, etc.).
- Allows air to escape during filling/priming, preventing air pockets that can disrupt filtration flow or cause pump cavitation.
- Compact, lightweight part — installs easily without modifying the filter tank or plumbing.
- Durable, pool-rated plastic construction — built to resist pool chemicals and typical operating conditions.
Specifications
- Manufacturer: Pentair / Sta-Rite
- Part Number: 24800-0121
- Application: Air-bleed assembly for PLM-series sand filter tanks
- Compatibility: System:2 (PLM) sand filters — PLM100, PLM125, PLM150, PLM175, PLM200, PLM300, etc.
- Function: Allows trapped air to escape while filling/priming filter tank for safe, efficient operation
When & Why to Replace
Replace the 24800-0121 air-bleed assembly if the original is cracked, missing, or leaking — or if the filter bleeds improperly (air pockets, difficulty priming, uneven flow, or noisy pump operation). Installing a fresh, genuine air-bleed ensures proper priming, efficient water circulation, and prolongs overall filter and pump lifespan.
Installation & Maintenance Tips
- Turn off the pump and relieve all pressure before removing or installing the air-bleed assembly.
- Clean the sealing surfaces on the filter tank before installation to ensure a watertight fit.
- After installation, slowly fill the filter with water — allow air to escape fully before starting the pump.
- Check for leaks or air intrusion during first startup and periodically during routine maintenance.
Why Stock This Part
Because air-bleeds are small, often overlooked components that are vital for proper filter operation, 24800-0121 is a valuable part for pool service professionals and retail customers alike. When it fails, filters may not prime or work properly — so having the correct OEM assembly on hand helps restore proper filtration without replacing the entire tank.
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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