Filter Adapter - 28mm

Name: Filter Adapter - 28mm
Brand: HydraPak
SKU: A179
Price: 3.65 USD
Availability: InStock
Rating: 5.0 (5 reviews)

$3.65 $5 In stock

Category: Accessories

Fits into Plug-N-Play Caps and Connectors to create a direct connection between your 28mm backcountry water filter and HydraPak Seeker storage containers, Flux bottles and reservoirs.

Compatible with most 28mm threaded water filters. Learn more by visiting our Filter FAQ page.

Must be paired with a HydraPak Plug-N-Play connection in order to work.

Example image pairs Sawyer Filter with the Filter Adapter and the Plug-N-Play cap.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Michael F. ★★★★★ Oct 19, 2026

After fumbling with tubes on past camping trips, this adapter clicks into place so securely that I don't worry about leaks. It's saved me time setting up my water system.

Violet W. ★★★★★ Oct 18, 2026

This little piece of plastic just made my whole backcountry setup click together. The threading is precise enough that I get a leak-free seal between my filter and the HydraPak storage, and it takes seconds to swap between bottles on the trail.

Daniel M. ★★★★★ Oct 14, 2026

Snapped this onto my filter and it threaded right into the Seeker without a single drip. Saving the extra hose and fittings means my pack's a bit lighter too.