Kirby Morgan Genuine Parts510-743 Oral Nasal Mask, 47/77SKU: 510-743 Add to quote Description Description Part # Description Qty. 510-743 Oral Nasal Mask, 47/77 1 Related products Kirby Morgan Genuine PartsSuperFlow® 450 Regulator Parts525-718 Stainless Steel Balanced Regulator Rebuild Kit (for SuperFlow® 450) View product Kirby Morgan Genuine PartsSuperFlow® 350 Regulator Parts525-309 SuperFlow 350 Regulator Rebuild Kit View product Kirby Morgan Genuine PartsThe REX® Regulator Parts525-310 KM-47 & KM-77 Regulator Rebuild Kit View product