HIGH-PRECISION COPPER CORE & ALUMINUM ALLOY HOUSING：Features a durable copper core and lightweight aluminum alloy shell for reliable fuel delivery with consistent 22ML flow rate. Ensures accurate performance for diesel parking heaters. WIDE COMPATIBILITY WITH 12V SYSTEMS：Works with most 12V diesel parking heaters for RVs, trucks, boats, and other vehicles. Designed to meet universal installation requirements. QUIET OPERATION & LOW POWER CONSUMPTION：Engineered for minimal noise and energy efficiency (DC 12V), providing steady heating without excessive battery drain.The product belongs to the pulse pump, and it is normal to have a slight click sound. WEAR-RESISTANT & LONG-LASTING MATERIALS：Constructed with special high-durability components and precision machining to ensure extended service life under frequent use. EASY TO DISASSEMBLE & CLEAN：Simplified design allows for quick maintenance and cleaning, helping maintain optimal fuel flow and performance over time. HIGH-PRECISION COPPER CORE & ALUMINUM ALLOY HOUSING Features a durable copper core and lightweight aluminum alloy shell for reliable fuel delivery with consistent 22ML flow rate. Ensures accurate performance for diesel parking heaters. WIDE COMPATIBILITY WITH 12V SYSTEMS Works with most 12V diesel parking heaters for RVs, trucks, boats, and other vehicles. Designed to meet universal installation requirements. QUIET OPERATION & LOW POWER CONSUMPTION Engineered for minimal noise and energy efficiency (DC 12V), providing steady heating without excessive battery drain. WEAR-RESISTANT & LONG-LASTING MATERIALS Constructed with special high-durability components and precision machining to ensure extended service life under frequent use. EASY TO DISASSEMBLE & CLEAN Simplified design allows for quick maintenance and cleaning, helping maintain optimal fuel flow and performance over time.