Is this a 3/8" inside diameter valve or 3/8" outside diameter? i have a brass valves that is 5/8" od. thanks...

I understand your question because I had the same one. I ordered anyway and indeed the outer diameter is 5/8 while the inner diameter is 3/8. I'm not sure what the proper terminology is or why it only mentions 3/8 but the outside of this brass valve will thread into a 5/8 fitting and has a 3/8 internal female fitting.

Will this product work for an above ground pool?

I have no idea if this will work for an above ground pool as our pool is in the ground and it works great.

Do you have a 1/2 instead of 3/8 on float

No. I have customers that buy a reducer. https://www.amazon.com/NIGO-Brass-Fitting-Bushing-Female/dp/B07F9PKMCJ/ref=sr_1_13?crid=585LVYPZBR5P&keywords=3%2F8+to+1%2F2+reducer+brass

Are you supposed to turn both knobs to adjust. I turned them and the whole thing came out of the arm?

First put adjustment screw back in. It kind of goes in at a angle. The bottom one is a locking nut you just need to loosen it. Then turn the top one up or down. After desired water level then tighten locking nut.

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Float Tec Control Devices T26 EZ Adjustment Brass Float Valve 3/8" NPT Male Threads 3" Arm Autofill, Water Filler Leveler, Pools, Spas, Water Tanks, Water Foutain Fit 6" Canister

Float Tec Control Devices T26 EZ Adjustment Brass Float Valve 3/8" NPT Male Threads 3" Arm Autofill, Water Filler Leveler, Pools, Spas, Water Tanks, Water Foutain Fit 6" Canister

Product ID: 200109571

Details

Brand
Float-Tec &
Exterior Finish
Brass Steel
Inlet Connection Size
0.38 inches
Inlet Connection Type
National Pipe
Item dimensions L x W x H
6 x 3 x 3
Material
Brass

💧2.25 GPM flow rate for efficient water control

⚙️3/8" NPT Male Threads for secure fit

🛡️Heavy-duty brass body for corrosion resistance

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Description

💧 Keep your water levels flawless—because your pool deserves precision and durability!

TRUSTED TESTED QUALITY - NSF certified and backed by thousands of 4.3-star reviews, this valve is a top choice for professional-grade water level management.
PRECISION WATER LEVEL CONTROL - Easily set your ideal pool or tank fill level with the adjustable float screw—never worry about overflow or underfill again.
BUILT TO LAST WITH PREMIUM BRASS - Crafted from durable brass and stainless steel, this valve withstands corrosion and harsh conditions for years of reliable use.
OPTIMIZED FLOW PRESSURE HANDLING - Supports up to 2.25 GPM flow at 125 PSI, ensuring smooth, consistent autofill performance for pools, spas, and water tanks.
SEAMLESS INTEGRATION WITH 6 CANISTERS - Designed to fit perfectly in-ground pools and autofill canisters without taking up extra space or complicating installation.

The Float Tec T26 EZ Adjustment Brass Float Valve features a 3/8" NPT threaded connection, adjustable float level screw, and a robust brass body designed for corrosion resistance. It supports a 2.25 GPM flow rate at 125 PSI, making it ideal for automatic water level control in pools, spas, water tanks, and fountains. Compatible with 6" autofill canisters, this valve ensures precise, maintenance-free water regulation with professional-grade reliability.

Specifications

ASIN	B08271SBWK
Best Sellers Rank	#35,388 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #379 in Pool & Spa Replacement Parts
Brand	Float-Tec & Control Devices
Brand Name	Float-Tec & Control Devices
Connector Type	Threaded
Customer Reviews	4.3 out of 5 stars 548 Reviews
Exterior Finish	Brass , Stainless Steel
Inlet Connection Size	0.38 inches
Inlet Connection Type	National Pipe Tapered
Item Dimensions	6 x 3 x 3 inches
Item dimensions L x W x H	6 x 3 x 3 inches
Manufacturer	Float-Tec
Manufacturer Part Number	ft150t26b
Material	Brass
Material Type	Brass
Maximum Pressure	125 psi
Model Number	T26B
Number of Items	1
Number of Pieces	1
Outlet Connection Size	0.38 inches
Outlet Connection Type	MNPT
Size	5 1/4" Long
Specification Met	NSF
Thread Size	3/8"
Thread Type	NPT
UPC	741187992572
Unit Count	1 Count
Valve Type	Float Valve

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$98.14

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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