Product Overview
The HOME-FLEX 18-401-007 is a 3/4-inch IPS equal tee for creating a branch in a compatible underground yellow polyethylene fuel-gas piping system. Its three matching 3/4-inch IPS connections allow a properly sized main run to continue while a third line branches toward another approved outdoor destination. The mechanical fitting arrives ready for system assembly with the internal stiffeners required for all three connected pipe ends.
This tee belongs to the HOME-FLEX Underground product family and is intended only for direct-burial installations using approved IPS yellow MDPE or polyethylene gas pipe carrying natural gas or propane. It is not compatible with HOME-FLEX CSST, and the underground and CSST product lines must not be mixed. HOME-FLEX lists its underground mechanical fittings under ASTM F1924 Category 1. The installer remains responsible for confirming system sizing, burial and routing requirements, fitting adjustment values, tracer-wire provisions, pressure testing, inspection, and local acceptance. Verify that every pipe entering the tee is the correct 3/4-inch IPS size and that the branch has adequate calculated capacity before ordering or installation.
Key Features:
- Equal tee with three 3/4-inch IPS connections
- Creates a branch in compatible underground poly gas piping
- Mechanical fitting supplied with internal stiffeners
- For approved IPS yellow polyethylene or MDPE gas pipe
- Suitable for natural-gas or propane systems when approved for the project
- ASTM F1924 Category 1 fitting family
Common Uses:
- Branching an underground gas run toward a second outdoor load
- Dividing a correctly sized underground distribution line
- Adding a three-way connection in a new HOME-FLEX Underground layout
Technical Specifications:
- Manufacturer part number: 18-401-007
- Product type: Underground equal tee
- Connection configuration: 3/4-inch IPS x 3/4-inch IPS x 3/4-inch IPS
- Connection method: Mechanical compression-style fitting
- Pipe compatibility: Approved IPS yellow polyethylene or MDPE gas pipe
- Fuel compatibility: Natural gas and propane
- Installation location: Underground direct-burial system
- Standard: ASTM F1924 Category 1
- Included components: Tee body and three internal pipe stiffeners
Important Installation Note:
Fuel-gas piping must be designed and installed by a qualified person as required by the governing authority. Do not use this fitting above ground, inside or beneath a building, encased in concrete, with CSST, or with pipe that does not match the size and specification marked on the fitting. The completed system must be tested and inspected according to the current HOME-FLEX instructions and local requirements before burial.
FAQ
What pipe size connects to this tee?
All three ports are sized for compatible 3/4-inch IPS yellow poly gas pipe.
Can this fitting connect to CSST?
No. It is designed for the HOME-FLEX Underground polyethylene system, not the separate HOME-FLEX CSST system.
Does it include the stiffeners?
Yes. Three internal stiffeners are supplied, one for each connected pipe end.
Is it suitable for indoor installation?
No. HOME-FLEX Underground products are intended for approved underground applications and must not be installed inside buildings.
Why Buy the HOME-FLEX 18-401-007 From Big Frog Supply?
Big Frog Supply identifies the exact 18-401-007 part number, equal 3/4-inch IPS layout, compatible pipe system, included stiffeners, underground-only use, and current manufacturer documents so buyers can match the tee to the planned gas-piping design.
