The Shop-Vac SVR-4510 Hose Coupling and Union is a simple but essential accessory for anyone running a Shop-Vac wet/dry vacuum system. Designed to join two 2-1/2" vacuum hoses end-to-end, this coupling allows users to extend their hose reach, replace damaged connection points, or quickly reconfigure their vacuum setup for different tasks. Whether you're cleaning a workshop, garage, commercial space, or reaching difficult areas across a large room, the SVR-4510 makes it easy to connect multiple hose sections into a single extended run without losing suction or introducing leaks.

The SVR-4510 is made from durable polypropylene plastic in a classic matte black finish, offering solid resistance to everyday wear, impact, and the kinds of chemicals and debris commonly encountered in workshop and garage environments. Its slip-fit union design allows the two hose ends to seat firmly within the coupling, creating a snug, secure joint that holds reliably under normal vacuum pressure. The compact, lightweight form factor adds no significant bulk to the hose run, and the tool-free connection means hoses can be joined or separated quickly without any special equipment or risk of damage to the hose ends.

With a 2-1/4" inner diameter (2.25") designed to accept standard 2-1/2" Shop-Vac hoses, the SVR-4510 is compatible with the vast majority of Shop-Vac wet/dry vacuum models across all power ratings — from compact 2.5 HP portable units to large stationary 6 HP and above shop vacuums. It also cross-references with part numbers 88-1040-01 and 90686, making it easy to confirm the right part for your system. Installation is straightforward: simply push each hose end into the coupling until seated, and the joint is ready to use. No adhesives, clamps, or tools required.

At Swiss Boy Vacuum, we stock genuine Shop-Vac replacement parts so you get the exact fit and performance the manufacturer intended. Small components like the SVR-4510 are the kind of part that can make or break a job — a split or worn coupling that leaks will rob your entire system of suction efficiency, while a fresh coupling restores full airflow instantly. As an authorized Shop-Vac dealer serving the Wasatch Front since 1963, Swiss Boy Vacuum is your local source for expert guidance, in-store availability, and professional service. Call us at 801-298-3656 or shop online at swissboy.biz.

Why Choose This Product?

• Extends Hose Reach Instantly — Join two 2-1/2" hose sections together for a longer run to reach upper floors, distant areas, or awkward spaces without moving the vacuum.
• Tool-Free Installation — The slip-fit union design requires no tools, adhesives, or clamps — hoses seat and release quickly by hand.
• Durable Polypropylene Construction — Impact- and chemical-resistant plastic holds up in workshop and garage environments where rough handling is common.
• Secure, Leak-Free Joint — Firm slip-fit seating maintains full suction without pressure loss at the connection point.
• Genuine OEM Part — Sold as an authentic Shop-Vac replacement (Part# SVR-4510 / 88-1040-01 / 90686), guaranteeing fit and compatibility.
• Wide Compatibility — Fits all standard 2-1/2" Shop-Vac hoses across the full range of HP ratings and model series.
• Preventive Maintenance Value — Replacing worn or cracked couplings before they fail keeps suction at peak performance and prevents hose damage.
• Authorized Dealer Stock — Available in-store at Swiss Boy Vacuum, Bountiful, Utah — no waiting on shipping for a critical shop part.

Specifications

Compatibility List

Shop-Vac Wet/Dry Vacuum Models:

• All Shop-Vac models with standard 2-1/2" hose ports, including:
• 2.5 HP portable shop vacuums
• 3 HP shop vacuums
• 4 HP shop vacuums
• 5 HP shop vacuums
• 6 HP and larger stationary shop vacuums
• Shop-Vac automotive vacuum systems
• Shop-Vac air mover systems with 2-1/2" hose fittings

Also Compatible With (via cross-reference):

• Ridgid wet/dry vacuums — 2-1/2" hose models
• Craftsman wet/dry vacuums — 2-1/2" hose models
• Genie wet/dry vacuums — 2-1/2" hose models

⚠️ Note: This coupling is designed for standard 2-1/2" (outer diameter) Shop-Vac hoses. It is not compatible with 1-7/8" or 1-1/4" diameter hose systems. If you are unsure of your hose size, contact Swiss Boy Vacuum at 801-298-3656 for confirmation.

Use Case

The SVR-4510 coupling is the go-to solution for workshop owners, contractors, and garage users who need to extend their Shop-Vac hose run beyond its standard length — whether reaching the far end of a large workspace, routing hose through a doorway, or replacing a cracked or split coupling that's robbing the system of suction. It's equally useful for anyone who stores hoses in shorter sections and wants a quick-connect solution that allows rapid reconfiguration without permanently joining hose lengths together. For professional shops and trades, keeping a spare coupling on hand is simply good maintenance practice.