rvguard rv stack jacks 4 pack, aluminum stabilizer jacks for rv trailer camper, single support up to 6000 lbs, adjustable from 11" to 17" 4 packs is up for auction in Tools & Home Improvement. The current bid is $1.00, 97% below the $31.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.