JB T3-10D 5/8 x 1/2 x 5/8 Brass Tee this part is the standard

this part is the standard combustion seal for various models across both lines

Durable Brass Construction: Resists thermal expansion and mechanical wear

The JB T3-5B Brass Tee is a high-performance HVAC refrigeration fitting engineered for primary service access and system manifolding

Use a multimeter to check for continuity

JB T3-10D 5/8 x 1/2 x 5/8 Brass Tee this part is the standardThe JB Industries T3 10D is a high performance 5 8 x 1 2 x 5 8 Brass Tee engineered for the rigorous demands of professional HVACR systems. Specifically designed as a 5 8 SAE Flare x 1 2 MPT x 5 8 SAE Flare fitting, this component is forged from premium C360 and C370 brass, ensuring high tensile strength and superior resistance to corrosion. Unlike lower quality imported alternatives, the JB T3 10D is machined in the USA to meet strict SAE J513 and