Will these fit on the Sawyer Mini (model 128), so that I can hook it to a bag and make a gravity filter from one bag to another?

Yes, they will fit onto a Sawyer Mini with the appropriate sized tubing (same diameter as the straw that comes with the Sawyer Mini). The end with the male threads will thread onto the Sawyer Mini. I guess I don't fully understand how you are trying to attach these items. Here is another possibility, and this is what I do. I want to have the ability to carry 3 liters of water in my 72 hour kit. Part of how I carry water is inside of two 16 ounce soda bottles. I use a Mountain Dew bottle for collecting dirty water. I attach my Sawyer Mini right to that for filtering as a squeez bottle which works much better than the pouch that comes with the Sawyer Mini. I squeezed the nipple and melted it shut on the adapter with male threads. I use that as a cap of my Sawyer Mini so that I do not cross contaminate my drinking system. The second soda bottle is a clear one that I thread the blue fitting onto so that I can back flush my Sawyer Mini through the straw.

Does this sp110 inline hydration pack adapter for screw-on filters fit the sawyer micro filter?

Yes but the barbs do not fit standard bladder tubing. They’re more the size of the silicon tube that comes with the filter.

What size tubing fits the adapters?

A standard size water bladder tube fits .

Am I correct in assuming.the blue adapter fits all "universal" pop bottle threads (28mm?) found on many types of flexible water bottles?

The blue adapter will fit almost all water bottles. I have them, there inexpensive and worth the money !!!

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SP110 Inline Hydration

Product ID: 1377977

Details

Brand
Sawyer
Included Components
Adapter
Installation Type
Item Weight
8.53 g
Material
Plastic
Package Information
Tube

💧Ultra filtration tech

📏Fits 1/4-inch tubing

🔩Screw-on/inline install

£19.19

Duties & taxes included

In stock

Sold byAmazon Isle of ManDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay hydrated, stay ahead — filter smarter, not harder!

COMPACT LIGHTWEIGHT - At just 8.5g and 4 inches long, it’s the perfect minimalist addition to your hydration pack.
EFFORTLESS INSTALLATION - Screw connections snap on/off in seconds—no tools, no fuss, just pure convenience.
SAFE HYDRATION ANYWHERE - Filter dirty water on the go and drink confidently with ultra filtration that beats bottled water.
UNIVERSAL COMPATIBILITY - Works flawlessly with Sawyer Squeeze and Dual Threaded MINI filters—upgrade without hassle.
SEAMLESS INLINE INTEGRATION - Transform your Sawyer filter into a sleek inline system for hands-free hydration.

The Sawyer SP110 Inline Hydration Adapter converts your Sawyer screw-on/off filter into an inline filtration system compatible with standard 1/4-inch tubing. Lightweight and compact, it enables easy installation into hydration packs, allowing you to drink purified water directly from your tube. Designed for use with Sawyer Squeeze and Dual Threaded MINI filters, it offers ultra filtration that ensures safe drinking water on the go.

Specifications

ASIN	B008JX0QP4
Best Sellers Rank	#30,301 in Automotive ( See Top 100 in Automotive ) #28 in RV Freshwater Filtration Systems & Parts
Brand Name	Sawyer Products
Container Type	Tube
Customer Reviews	4.5 4.5 out of 5 stars (755)
Global Trade Identification Number	00033586644085
Included Components	Adapter
Installation Type	Screw-on/Inline
Item Dimensions L x W x H	4"L x 1.75"W x 4"H
Item Type Name	Hydration Accessories
Item Weight	8.53 g
Manufacturer	Sawyer Products
Material Type	Plastic
Model Name	Inline Hydration
Model Number	SP110
Number of Items	1
Number of Packs	1
Other Special Features of the Product	fluid-oz
Part Number	SP110
Power Source	Adapter
Purification Method	Ultra Filtration
Supported Water TDS Level Maximum (PPM)	300
UPC	050716001105 785571956061 442104270871 095006896405 033586644085
Unit Count	1 Count
Upper Temperature Rating	90 °C
Warranty Description	Manufacturer Limited Warranty

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