More spec. and a 5-year warranty at the same price! That’s Geotech’s upgrade news on the new AP4+ pneumatic landfill leachate pumps. Now made in stainless steel with engineering-strength plastic, AP4+ pumps are easier to strip, clean and re-assemble. The warranty increases to five years reflecting the already value-giving proven performance of these renowned air-powered, ATEX Zone 0 certified AutoPumps. The improvements extend the service lifetime and broaden the range of its applications in extreme environmental conditions in landfill and remediation.