Infinity Tools 4" Quick Coupler

Name: Infinity Tools 4" Quick Coupler
Brand: Infinity Cutting Tools
SKU: 115-375
Price: 4.74 USD
Availability: InStock
Rating: 4.4 (5 reviews)

Infinity Tools 4" Quick Coupler - Main image

$4.74 ~~$7.9~~ In stock

Category: Dust Collection Fittings & Hoses

This 4" Quick Coupler features a tapered end with a 3-9/16" O.D. to fit inside most 4" ports and fittings. 4" hose threads securely onto the opposite end without the need for hose clamps. NOTE: The threads on this fitting are left-handed to match the winding of most dust collection hoses.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Ella Z. ★★★★★ Oct 18, 2026

Finally a coupler that actually grips the hose without needing a clamp—the threading is snug and secure. The tapered end fit perfectly into my dust collector's 4" port, zero leaks so far.

Ella E. ★★★★★ Oct 14, 2026

Wasn't sure the tapered end would seal tight on my old dust port, but it fit like it was made for it. The hose threads straight on the other end, so no more hunting for a clamp that's always missing. Genuinely the easiest part of my whole shop setup.

Ryan F. ★★★★★ Oct 11, 2026

Finally a coupler that actually holds the hose tight without clamps. The threaded end grips the hose securely and the tapered side fits snugly into my dust collector port. Huge time saver for setup.