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: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
Related Products
