




We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
The Platypus GravityWorks Replacement Water Reservoir Kit 4.0 L keeps your filtration setup fresh and flexible on the trail. Replace worn reservoirs or scale capacity to match your group and pace.
Two reservoirs: Clean and Dirty, are included with quick-disconnect fittings for fast, fuss-free swapping, even when you're moving between tasks. The dual-layer laminate blends a rugged exterior with a taste-free interior, helping preserve the water flavor as you carry it from source to bottle.
The 4.0 L kit is part of a trio of sizes (6.0 L, 4.0 L, 2.0 L) that let you scale for group size or trip length. The lightweight design supports day hikes and longer treks alike, while the quick-disconnect fittings keep your setup flowing smoothly from source to storage.
Whether you're upgrading an existing kit or building a backup for challenging itineraries, this replacement reservoir kit offers a practical, reliable upgrade that respects your pace and environment.
Q: What is included in the 4.0 L replacement kit and how does it work with GravityWorks?
A: Includes dirty and clean reservoirs with quick-disconnect fittings to replace worn parts or scale your system.
Q: Where is the kit made and what warranty comes with it?
A: Made in the USA with a limited lifetime warranty; 4.0 L kit measures 15 x 8 inches and weighs 6 oz.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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