Here's what other sites are saying:
Plug the Platypus GravityWorks Push-Pull Adaptor into any platy bottle or reservoir for easy refills. Simple pull off the blue bite valve and plug in the Gravity works hose to fill up your bottle and be back to hydrated in no time.
- Mountain Gear
Platypus Camp & Hike Gravityworks Pushpull Adapter 6955.
Platypus GravityWorks Push / Pull Adapter FEATURES of the Platypus GravityWorks Push / Pull Adapter Allows Platypus GravityWorks systems to filter and backflush directly with most hydration systems and Platypus bottles that have a push-pull cap
Platypus GravityWorks Universal Bottle Adapter
$10 - $12
Platypus GravityWorks/CleanStream Hose Kit
$15 - $19
Platypus Push-Pull Cap
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