Denver_80211: 2hp vacuum placement
Denver_80211: 6 inch to 4 inch vacuum pipes
Denver_80211: 4 inch vacuum pipe and plywood sound dampening box
Denver_80211: Small clamp storage, 30 feet of 2 inch hose, etc
Denver_80211: Large/small vacuum system, Air compressor
Denver_80211: When floor was poured, trench added for power, air