Pentair Admiral S20 Skimmer Circular Weir with Equalizer, 2" Slip, Concrete | 84420505
Pentair
SKU: 84420505
Pentair Admiral S20 Concrete Pool Skimmer, 2" Slip Ports, Circular Weir, with Equalizer (White) | 84420505
The Pentair 84420505 is a heavy-duty Admiral S20 skimmer designed for concrete (gunite/plaster) pools and spas. This model features 2" slip (socket) plumbing ports, an exclusive circular weir, and an integral equalizer for installations that require an equalizer connection (commonly used for commercial/NSF-style applications and low-water protection designs).
Key Features
- For concrete pools & spas: built for standard concrete pool construction and skimming performance.
- 2" slip ports: socket connections for 2" PVC plumbing (match your plumbing layout before ordering).
- Circular weir: promotes steady surface draw and helps pull floating debris into the basket.
- Equalizer-equipped: supports equalizer line setups intended to reduce pump air draw during low-water conditions (installation-dependent).
- Reinforced PVC base: designed for durability and long-term stability in pool decks.
- Lock-down lid style: secure cover design for safer, cleaner equipment access.
- Lid extension collars: supports height adjustments for deck finish changes (as needed by the install).
Specifications
- Manufacturer: Pentair
- Part Number: 84420505
- Skimmer Series: Admiral S20
- Application: Concrete pools & spas
- Weir Type: Circular weir
- Equalizer: Yes
- Port Size: 2" slip (socket)
- Color: White
Why Replace the Skimmer Body
- Cracked skimmer throat/body causing water loss behind the deck
- Broken or stripped lid/cover interface
- Damaged port area, leaks at fittings, or failed equalizer connection
- Major renovation or remodel requiring a new skimmer body
Installation Notes
- Concrete-only: confirm you are replacing a concrete skimmer (vinyl/fiberglass skimmers are different).
- Match plumbing: this model uses 2" slip connections; verify suction line size and layout.
- Equalizer setups vary: only use the equalizer connection if your design/codes require it and plumbing is present.
- Professional installation is strongly recommended for deck/plaster work and leak-free bonding/plumbing.
Related Products
- Admiral S20 Skimmer Basket (85014500)
- Admiral Skimmer Float Valve / Equalizer Assembly (85015200)
- Admiral S20 Lock-Down Lid (85007400)
- Admiral S20 Replacement Parts
- Skimmer Weirs
- Skimmer Lids & Covers
Maintenance Tips
- Empty the skimmer basket regularly—restricted flow can reduce circulation and strain the pump.
- Keep the pool water level around mid-skimmer opening for best skimming and to minimize air draw.
- After storms, check the skimmer often; heavy debris can clog the basket quickly.
- If you see persistent air bubbles at the pump, inspect the skimmer lid, basket seating, and all suction-side seals and valves.
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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