Girard Equipment, Inc. , , About Solutions industries Home Companies & Suppliers Girard Equipment, Inc. Downloads Girard - Model 3X407MVBTT - ... Girard - Model 3X407MVBTT - Magnetic Vacuum BreakerBrochure GE 3X407MVBTT VACUUM BREAKER, TEF-O-SIL O-Ring,-3″NPS Swivel With Ports.