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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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 filters

🧊Freeze-safe TPU material

₨21391

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Description

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

PACK LIGHT GO FAR - Collapsible design folds flat to save precious pack space on every adventure.
EFFORTLESS HANDLING - Low-profile handle and large 42mm opening make filling, pouring, and carrying a breeze.
LIFETIME CONFIDENCE - Backed by HydraPak’s Beyond Lifetime Guarantee—your hydration partner for life.
FILTER READY HYDRATION - Seamlessly integrates with most 42mm threaded filters for clean water anywhere.
BUILT TO BRAVE THE ELEMENTS - Durable, abrasion-resistant TPU stands up to rugged trails and extreme temps (-20°C to 60°C).

The HydraPak Seeker 2L is a lightweight, collapsible water storage reservoir crafted from durable TPU. Designed for backpackers and campers, it packs down flat to save space, withstands freezing and hot water up to 60°C, and fits most 42mm water filters for on-the-go purification. With a weather-resistant handle, large opening, and lifetime warranty, it’s the ultimate versatile hydration solution for the modern outdoor enthusiast.

Specifications

ASIN	B08NX82XZB
Best Sellers Rank	#2,785 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Outdoor Backpack Reservoirs
Color	Mammoth Grey
Customer Reviews	4.5 4.5 out of 5 stars (2,624)
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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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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₨21391

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Sri Lanka.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews