Search the catalog

Search the catalog

Related products

Building Supplies

Gutter Systems
Roofing
Ventilation
Siding
Concrete, Cement & Masonry
Ceilings
Drywall

Plumbing

Plumbing Tools
Plumbing Parts
Pipe & Fittings
Water Pumps
Valves
Plumbing Accessories
Drainage

Lighting & Electrical

Wiring Devices & Light Controls
Batteries
Electrical Boxes, Conduit & Fittings
Power Distribution
Wire
Wall Plates
Electrical Cords

Shop by Brand

Milwaukee
STIHL
DeWalt
YETI
Diablo
National Hardware
Rust-Oleum

© 2026 Core Ranger, Inc.

LTWFITTING 3/8 in. O.D. 5/16 in. O.D. Brass… | Core Ranger

Home
Plumbing
Pipe & Fittings
Fittings
Brass Fittings

LTWFITTING 3/8 in. O.D. 5/16 in. O.D. Brass Compression Reducing Coupling Fitting

Pack Size

$15.99–$31.99$1599–$3199

This LTWFITTING Compression Unions are made of brass for durable. Designed for use with aluminum, copper and plastic tubing. Not for use with steel tubing. Plastic tubing requires NPT insert and opt sleeve. This fitting connects to tubing on both ends.

Brass construction for corrosion resistance and durability
Designed to connect on both ends of tubing
Ideal use with aluminum, copper or plastic

Specifications

Features: Corrosion Resistant
Material: Brass
Pack Size: 5
Connection: Comp x Comp
Returnable: 90-Day
Application: Air,Natural Gas,Non-Potable Water,Oil
Color Family: Brass
Connection 1: Comp
Connection 2: Comp
Connectivity: Compression
Fitting 1 size: 3/8"
Fitting 2 size: 5/16"
Double Fitting Size: 3/8" x 5/16"
Single Fitting Size: 3/8"
Product Weight: 0.074 lb
Manufacturer Warranty: 3 Year Limited
Fitting Size Dimensions: 3/8" x 5/16"
Compatible Pipe Material: Multi-Purpose
Fitting or Connector Type: Union
Pipe or Fitting Product Type: Fittings & Connectors
Fitting/ Connector Collection: Brass
Maximum working pressure: 150 psi
Maximum Working Temperature: 200 F

All variants of LTWFITTING 3/8 in. O.D. 5/16 in. O.D. Brass Compression Reducing Coupling Fitting

LTWFITTING 3/8 in. O.D. 5/16 in. O.D. Brass Compression Reducing Coupling Fitting — 5 — Part #HF62R6505 — $15.99
LTWFITTING 3/8 in. O.D. 5/16 in. O.D. Brass Compression Reducing Coupling Fitting — 25 — Part #HF62R6525 — $31.99

Related products

Related products

LTWFITTING 1/2 in. FIP 1/2 in. MIP Brass Pipe Adapter Fitting

LTWFITTING

LTWFITTING 1/2 in. FIP 1/2 in. MIP Brass Pipe Adapter Fitting$13.99–$60.77^$13⁹⁹–^$60⁷⁷

LTWFITTING 3/4 in. MIP Brass Pipe Hex Nipple Fitting

LTWFITTING

LTWFITTING 3/4 in. MIP Brass Pipe Hex Nipple Fitting$6.99–$27.48^$6⁹⁹–^$27⁴⁸

LTWFITTING 3/8 in. O.D. Comp 1/4 in. FIP Brass Compression Adapter Fitting

LTWFITTING

LTWFITTING 3/8 in. O.D. Comp 1/4 in. FIP Brass Compression Adapter Fitting$7.98–$21.98^$7⁹⁸–^$21⁹⁸

LTWFITTING 1/4 in. Brass Compression Sleeve Fittings

LTWFITTING

LTWFITTING 1/4 in. Brass Compression Sleeve Fittings$9.89–$71.77^$9⁸⁹–^$71⁷⁷

LTWFITTING 3/8 in. I.D. Brass Hose Barb Splicer Fittings

LTWFITTING

LTWFITTING 3/8 in. I.D. Brass Hose Barb Splicer Fittings$7.49–$19.94^$7⁴⁹–^$19⁹⁴

LTWFITTING 3/16 in. O.D. 1/4 in. O.D. Brass Compression Reducing Coupling Fitting

LTWFITTING

LTWFITTING 3/16 in. O.D. 1/4 in. O.D. Brass Compression Reducing Coupling Fitting$9.06–$23.98^$9⁰⁶–^$23⁹⁸

LTWFITTING 1/2 in. FIP Brass Pipe Cap Fitting

LTWFITTING

LTWFITTING 1/2 in. FIP Brass Pipe Cap Fitting$7.49–$10.98^$7⁴⁹–^$10⁹⁸

LTWFITTING 1/4 in. MIP Brass Pipe ° Elbow Fitting

LTWFITTING

LTWFITTING 1/4 in. MIP Brass Pipe ° Elbow Fitting$7.98–$33.78^$7⁹⁸–^$33⁷⁸

LTWFITTING 1/4 in. I.D. Brass Hose Barb Tee Fittings

LTWFITTING

LTWFITTING 1/4 in. I.D. Brass Hose Barb Tee Fittings$11.99–$21.99^$11⁹⁹–^$21⁹⁹

LTWFITTING 1/8 in. 1/4 in. I.D. Brass Hose Barb Reducer Splicer Fittings

LTWFITTING

LTWFITTING 1/8 in. 1/4 in. I.D. Brass Hose Barb Reducer Splicer Fittings$10.39–$39.71^$10³⁹–^$39⁷¹

LTWFITTING 3/8 in. Brass Compression Cap Fitting

LTWFITTING

LTWFITTING 3/8 in. Brass Compression Cap Fitting$6.99–$35.98^$6⁹⁹–^$35⁹⁸

LTWFITTING 1/2 in. FIP 1/4 in. MIP Brass Pipe Adapter Fitting

LTWFITTING

LTWFITTING 1/2 in. FIP 1/4 in. MIP Brass Pipe Adapter Fitting$10.99–$44.99^$10⁹⁹–^$44⁹⁹