Additional Drilling Equipment - Contact Us About Us Payment Shipping Returns Click here to view full size. Full Size Image Click to close full size. Heinrich 33-4 Diaphragm for Single Acting Air Vises - Model - 33-4 Model: 33-4SKU:: 2481320 Price: US $21.52 Description Weight 0.05 lbs. Contact Us About Us Payment Shipping Returns Frooition www.frooition.com | eBay design, eBay store design, eBay shop design, eBay template design, eBay listing design This listing is currently undergoing maintenance, we apologise for any inconvenience caused. Location: Boulder, CO. For complete listing information please select the Click To Bid button to see this item on eBay.