description bv 50a-h backpack concrete consolidation tool backpack vibrator with 50cc honda engine, compatible with wacker neuson hms series heads and shafts, ideal for light to medium duty concrete work and hard to reach concrete applications. oztec shaft adapter can be ordered as an option. california proposition 65 warning. features comfortable lightweight backpack harness system. centrifugal clutch allows for easy starting throttle mechanism can be moved on either side of the operator. gas powered. specifications acme tools brand name wacker neuson acme tools part number 5100041314 assembled weight (lbs) 34 california proposition 65 warning required yes country of origin united states globaltradeitemnumber (gtin) 00400100009765 manufacturer warranty 1 year parts and labor package weight 35 package weight (lbs) 35 shipping weight (lbs) 36 upc 400100009765