Do you run with two propane tanks? I have a brand new, never used Marshall dual propane regulator with changeover feature(LPR-1). Also includes mounting brackets and two hoses. $40.00 + actual shipping costs. PM me if interested. Details:

• Two-stage automatic regulator with convenience of instant automatic change-over from empty to full gas bottle

• 5-3/4" L x 3-1/8" W x 2-1/2" D

• 210,000 Btu capacity

• 1/4" inverted flare inlets, 3/8" FPT outlet

• Easy-to-read indicator

• Second stage relief mechanism per UL 144

• Reinforced diaphragms