GZ25N14 / GZ25N23 Air Pipe (F) $2.50 Quantity discounts available QuantityPrice Quantity: -+ SKU: AV836 ABOUT THIS PRODUCT:GZ25N14 / GZ25N23 Air Pipe (F)AboutAboutAir pipe for GZ25N14 / GZ25N23 engine. PMW part # 4513.Zenoah part 4810-16160