Cross, Slip x Slip x Slip x Slip PVC Schedule 40 3/4" (420-007)

This 3/4" Schedule 40 PVC Cross Fitting provides four-way inline branching in solvent-cement PVC piping systems, allowing a single pipe run to split or intersect in two directions simultaneously from a common center body. Constructed in white Schedule 40 PVC, it offers reliable performance in irrigation, fire suppression, commercial plumbing, and light industrial applications where a compact, corrosion-resistant four-port junction is required at the most widely specified lateral distribution pipe diameter in PVC grid-layout systems.

All four ports — both inline run ends and both perpendicular branch outlets — accept 3/4" PVC pipe for permanent solvent-cement bonds, creating a rigid, leak-free assembly at each joint. The cross configuration is particularly well-suited for grid-layout irrigation headers, fire suppression branch line intersections, distribution manifolds, and any system layout where two perpendicular pipe runs must intersect at a single fitting rather than being constructed from multiple tees and nipples. At 3/4", the cross is the highest-demand size in the 420 series alongside 420-010 (1") — appearing throughout residential and commercial landscape irrigation systems, light-hazard fire suppression grid headers, and commercial plumbing branch distribution assemblies where 3/4" pipe serves as the primary lateral distribution and branch header diameter. This fitting consolidates the four-way junction into a single body, reducing overall fitting count, shortening assembly time, and minimizing potential leak points compared to a multi-tee assembly at the same intersection — an efficiency that is especially impactful in grid-layout systems where cross fittings appear at regular intervals throughout the header network.

Rated to approximately 480 psi at 73°F, this cross fitting handles the pressure demands of standard commercial and light industrial water distribution service. Its PVC composition provides excellent resistance to corrosion, scale buildup, chlorinated water, and a broad range of chemical exposures, making it a long-lasting alternative to metal fittings in moisture-prone or chemically active environments. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to both the pipe end and fitting socket per ASTM D2564 procedures at each port, using a primer appropriate for the pipe and fitting schedule. Insert pipe fully into each socket and maintain a quarter-turn during assembly for even cement distribution across the joint surface. Work through all four joints systematically and allow adequate cure time before pressurizing the system. Derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Creates four-way junctions in grid-layout irrigation headers, lateral distribution manifolds, and zone supply lines in residential and commercial irrigation systems where 3/4" pipe is the standard branch header diameter and four-way intersections replace multi-tee assemblies at grid corner and mid-run intersection points — the dominant application for this fitting at the most widely specified lateral distribution diameter in PVC irrigation systems
• Fire Suppression Systems — Branches 3/4" sprinkler supply lines at four-way grid intersections in light-hazard Schedule 40 PVC fire suppression installations where 3/4" is the dominant branch header diameter and grid-layout systems require frequent four-way junction fittings at header intersection points throughout the distribution network
• Commercial Plumbing — Distributes water to multiple branch lines from a single inline location in pressurized 3/4" supply systems, reducing fitting count versus multi-tee assemblies at four-way junction points in commercial building water distribution networks where 3/4" pipe serves dedicated service and branch supply runs
• Industrial Process Piping — Serves as a compact four-port junction in 3/4" process water, cooling water, and rinse station distribution lines in light-duty manufacturing and water treatment facility installations where grid-layout or manifold-style distribution requires four-way branching at a common small-diameter service line
• Water Treatment & Aquaculture — Used in recirculating system manifolds, filter feed laterals, and tank distribution grids at 3/4" line sizes where corrosion resistance, NSF/ANSI 61 compliance, and a compact four-way junction are required at distribution intersection points throughout the all-socket assembly
• HVAC & Mechanical Systems — Branches 3/4" chilled water or chemically treated water distribution lines at four-way intersections in cooling tower and mechanical system installations where Schedule 40 PVC pressure ratings are appropriate and grid-layout distribution requires four-way junction fittings at regular intervals along the 3/4" distribution network