Therm-a-Rest® - Sleeping Pads, Bags & Outdoor Comfort

GravityWorks™ Push-Pull Cap Adapter

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$10.46 $13.95 In stock

The GravityWorks™ Push-Pull Cap Adapter from Platypus is a practical accessory designed to enhance your hydration system. It aids direct filtration through a push-pull cap or into a drink tube, making it easier to enjoy clean water on the go.

  • Compatible with GravityWorks™ systems for seamless integration.
  • Enables direct filtration through a push-pull cap for quick and convenient use.
  • Alternatively, allows filtration directly into a drink tube for hands-free hydration.
  • Simple, lightweight design that adds versatility to your outdoor water setup.
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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 (4.8 / 5 · 5 reviews)

Avery B. ★★★★★

Fits perfectly on my hydration bladder's hose, and the push-pull cap makes gravity filtering way less fiddly than threading a tube. Now I can fill my bottle straight from the bag without taking it off my shoulders.

Emily ★★★★★

I was honestly surprised how seamlessly it mates with my filter setup, turning direct filtration into a one-handed job on the trail. The cap’s threading is snug enough that I don’t worry about leaks, and it saved me from carrying an extra bottle adapter.

Madison P. ★★★★★

Didn't expect the push-pull cap to click on so securely, but the threads are cut perfectly and there's zero wobble once it's seated. Filtration straight into a drink tube is a game-changer for trail days.