Don't see the 28 mm cap adapter for a Sawyer filter, how do I order the caps for that?

Hi, the adapter is available on HydraPak.com in the accessory section.

What is the cap size please? Is the mouth like a normal bottle?

The cap is smaller than the caps for Nalgene bottles, but bigger than the caps for smart water bottles. I don't know the exact size by measurement or by its name.

Does anyone know if this product will be compatible with the MSR MiniWorks EX Backountry Water Filter? Thanks!

The HydraPak Seeker has a 42mm cap and the filter screws onto a 63mm bottle so this would not be compatible.

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HydraPak Seeker Collapsible Camping Water Storage (2L, Mammoth Grey)

HydraPak Seeker Collapsible Camping Water Storage (2L, Mammoth Grey)

Product ID: 282333342

Details

Bottle Type
Collapsible
Brand
HydraPak
Capacity
2 Liters
Color
Mammoth Grey
Material
Thermoplastic

💧2L collapsible capacity

🔄Compatible with 42mm water filters

🧊Freeze-safe to 60°C/140°F

€ 48.41

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay hydrated, stay unstoppable — the Seeker adapts to every adventure!

PACK LIGHT GO FAR - Ultra-compact foldable design fits effortlessly in any pack
LIFETIME CONFIDENCE - Backed by HydraPak’s Beyond Lifetime Guarantee
BUILT TO BRAVE THE WILD - Abrasion-resistant TPU stands up to rugged outdoor use
VERSATILE HYDRATION HUB - Use as a water carrier, ice pack, or hot water reservoir
FILTER READY FOR PURE ADVENTURE - Seamlessly integrates with most 42mm threaded filters

The HydraPak Seeker 2L is a lightweight, collapsible water storage solution crafted from durable TPU. Designed for backpackers and campers, it folds flat for easy packing, withstands temperatures from freezing to 60°C, and fits most 42mm threaded water filters for on-the-go purification. With abrasion resistance and a lifetime warranty, it’s the ultimate hydration companion for efficient, space-saving outdoor adventures.

Specifications

ASIN	B08NX82XZB
Best Sellers Rank	#3,257 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #6 in Outdoor Backpack Reservoirs
Color	Mammoth Grey
Customer Reviews	4.5 4.5 out of 5 stars (2,615)
Date First Available	December 12, 2020
Included Components	1 Collapsible Bottle
Item Package Quantity	1
Item Weight	2.68 ounces
Item model number	A822M
Manufacturer	HydraPak
Material	TPU
Part Number	A822M
Pattern	Water Storage
Product Dimensions	5.1 x 1 x 12.6 inches
Shape	Round
Size	2 Liter
Special Features	Filter
Style	2 Liter
Warranty Description	Beyond Lifetime Warranty, Lifetime Warranty

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