Natural Gas P&F supplies MDPE PE2708 for Gas Distribution Systems Natural Gas Distribution Propane (LPG) Regulated DOT 49 CFR 192 UPC IAPMO Specifications for our most common pipe and fittings are provided on the Specs & Submittals page MDPE Pipe for Regulated Natural Gas, LPG and Propane Applications MDPE Pipe Size and Dimension Chart for Natural Gas Applications MDPE Temperature vs Pressure Compensation Chart