Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S. [RS4/BOS12V3] Outdoor | Waterproof Bags & Cases conveniently uses 1lb disposable propane

conveniently uses 1lb disposable propane fuel canisters

The PerfectFlow™ Regulator will keep a constant heat

The RH-1 loud horn is for the hearing impaired or installation with extreme ambient noise levels

Installation hardware is (4) 1/4"-20 x 1-3/4" bolts and (4) 1/4"-20 nuts

Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S. [RS4/BOS12V3] Outdoor | Waterproof Bags & Cases conveniently uses 1lb disposable propaneRS4 4 Bank Battery Charger with 3 Bank B. O. S. This kit includes Dual Pros B. O. S. Battery Optimization System 12V 3 Bank (PN: BOS12V3) and Dual Pros RealPRO Series Battery Charger 24A 4 Bank (PN: RS4). B. O. S. (Battery Optimization System) 12V 3 Bank B. O. S. actively shuttles energy between batteries to keep the pack balanced, increasing battery strength and longevity. Batteries in a pack will become out of balance and the pack is only as good as