Hollaender Extended Barrel Tee, 1.5" Pipe Size

  • Made in the USA with 100% US content
  • The 535.0 aluminum-magnesium alloy used to make these fittings is the most corrosion resistant alloy available. Hollaender is supporting this fact with a 10 year warranty against corrosion on the fitting itself.
  • This alloy is strong, lightweight, will not rust, and can be used with galvanized steel or other metals without concern for galvanic corrosion.
  • Simple installation
  • No bolts, only (2) set screws to tighten with a hex key.
  • Set screws have a proprietary internal/external knurled cup point that prevents loosening as long as torqued per specification.
SKU SE-H-MR-3 Category


Hollaender manufactures a large selection of structural fittings that can be used with standard pipe to create various types of solar panel mounting systems, both ground and roof. The 1-1/2″ extended barrel tee (No. 5EXT) is made of aluminum-magnesium alloy.


Hollaender® fittings, when torqued to the settings indicated have the following support and holding strengths when attached to galvanized steel pipe:

Fitting size Torque (ft lb) Holding and support force w/2 set screws Holding and support force w/1 set screw
1-1/4″ IPS 14 2000 lb 1800 lb
1-1/2″ IPS 17 2350 lb 1850 lb
2” IPS 17 3200 lb 1925 lb

Additional information

Weight 0.66 lbs
Dimensions 4 × 2 × 2 in