--- product_id: 631450528 title: "POWERTEC 70145 4-Inch to 3-Inch Reducer" brand: "powertec" price: "190 Lei" currency: RON in_stock: true reviews_count: 5 category: "Powertec" url: https://www.desertcart.ro/products/631450528-powertec-70145-4-inch-to-3-inch-reducer store_origin: RO region: Romania --- # Optimized airflow velocity 4-inch to 3-inch precise fit Heavy-duty ABS plastic durability POWERTEC 70145 4-Inch to 3-Inch Reducer **Brand:** powertec **Price:** 190 Lei **Availability:** βœ… In Stock ## Summary > πŸ”— Connect with Confidence β€” Upgrade Your Dust Collection Game! ## Quick Answers - **What is this?** POWERTEC 70145 4-Inch to 3-Inch Reducer by powertec - **How much does it cost?** 190 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/631450528-powertec-70145-4-inch-to-3-inch-reducer) ## Best For - powertec enthusiasts ## Why This Product - Trusted powertec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Crafted from premium ABS plastic to resist abrasion, rust, and corrosion in tough workshop environments. - β€’ **Quick & Secure Fit:** Tapered 4-inch OD end fits inside most 3-inch hoses for fast, reliable installation. - β€’ **Compact & Lightweight:** Only 0.21 lbs with precise dimensions for easy handling and minimal workspace intrusion. - β€’ **Seamless Size Transition:** Effortlessly connect 4-inch hoses to 3-inch ducts for perfect compatibility. - β€’ **Boost Your Dust Collection:** Tapered port design increases air velocity exactly where you need it most. ## Overview The POWERTEC 70145 4-Inch to 3-Inch Reducer is a durable, precision-engineered dust collection adapter made from heavy-duty ABS plastic. Designed to seamlessly connect 4-inch outer diameter hoses to 3-inch inner diameter ducts, it enhances airflow velocity near your woodworking machines. Its tapered port ensures a secure, quick fit, making it an essential upgrade for efficient, professional-grade dust management in any workshop. ## Description This dust collection fitting allows you to connect a 3-inch ID opening to 4-inch flexible hose and/or transition a 3-inch ID opening to 4-inch ID standard hose. It’s easy to use and offers a secure, quick attachment to your dust collector hose. It’s ideal for increasing air velocity near the machine where it's needed most. Additionally, it features a tapered port on one side that fits inside most 3" dust collection hose. Heavy Duty Quality We make our reducers utilizing premium ABS plastic material, which provides long-term durability with resistance to rust and corrosion. It’s thick walls are intended to stand up to hose clamp pressure and the abrasive nature of woodworking and workshop dust collection. Specifications Color: Black Material: ABS Plastic 4-Inch Nominal End Measures: 3-15/16-inch outer diameter by 3-45/56-inch inner diameter 3-Inch Nominal End Measures: 2-63/64-inch outer diameter by 2-23/32-inch inner diameter POWERTEC is a leading manufacturer of high quality wood work accessories, sanding discs and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry. Review: excelente - Produto fabricado com qualidade Review: Perfect fit. ## Features - INCLUDES: 4 inch to 3 inch dust collection reducer (1pc) - FUNCTION: This dust collector attachment possesses a 4-inch OD end that connects to standard 4-inch ID dust collection hose and allows you to step down to a 3 inch dust collection hose or line branch. Note: to connect to other 4” OD ports or adapters, a 4”flex cuff, POWERTEC 70149, will be needed. - EASY TO USE: Offers a 4” OD profile with tapered port on one side, fits inside most 3" dust collection hose - PREMIUM QUALITY: Made with heavy duty ABS plastic material for long-term durability and made to withstand the abrasive nature of woodworking and workshop dust collection - DIMENSIONS: 4-Inch o.d nominal end | 3-Inch o.d nominal end - Connect 3-Inch opening duct to 4-Inch flexible hose - Transition 3-Inch duct to 4-Inch standard hose - Tough, durable ABS plastic material - 4-Inch nominal end measures 3-15/16-Inch O.D. and 3-45/56-Inch I.D. - 3-Inch nominal end measures 2-63/64-Inch O.D. and 2-23/32-Inch I.D. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00M3IT378 | | Best Sellers Rank | #270,640 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #2,092 in Hose Parts & Connectors | | Brand | POWERTEC | | Brand Name | POWERTEC | | Colour | 4" to 3" Reducer | | Connector Type | Reducer | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 851 Reviews | | Exterior Finish | ABS | | Global Trade Identification Number | 00736815005960 | | Included Components | 4-Inch to 3-Inch Reducer | | Item Dimensions | 10.5 x 10.5 x 8.7 Centimeters | | Item Type Name | POWERTEC 70145 4-Inch to 3-Inch Reducer | | Item Weight | 0.21 Pounds | | Item dimensions L x W x H | 10.5 x 10.5 x 8.7 Centimeters | | Manufacturer | Southern Technology LLC | | Material | ABS plastic | | Material Type | ABS plastic | | Model Number | 70145 | | Number of Pieces | 1 | | Size | 1 Count (Pack of 1) | | Thread Size | 3 inches | | Thread Type | Metric Tapered | | UPC | 736815005960 | | Unit Count | 1.0 Count | ## Product Details - **Size:** 1 Count (Pack of 1) - **Material:** ABS plastic - **Brand:** POWERTEC - **Colour:** Black - **Item dimensions L x W x H:** 10.5 x 10.5 x 8.7 Centimeters - **Connector Type:** Reducer - **Thread Size:** 3 inches - **Exterior Finish:** ABS - **Thread Type:** Metric Tapered - **Item Weight:** 91 Grams ## Images ![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 1](https://m.media-amazon.com/images/I/51bbjT1EtkS.jpg) ![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 2](https://m.media-amazon.com/images/I/41zEYb3yAqS.jpg) ![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 3](https://m.media-amazon.com/images/I/41iXZ-YmcjS.jpg) ![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 4](https://m.media-amazon.com/images/I/61hnLXivRMS.jpg) ![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 5](https://m.media-amazon.com/images/I/61gYZ7L-3CS.jpg) ## Questions & Answers **Q: What is the ID of the 3inch side?** A: I bought this for my grizzly shaper with a 3" dust port. the 3" end is the same OD as the shaper. What I had to buy was a 3" x 6" piece of dust collector hose. I think Rockler sells it. Good luck. **Q: I need a 2.75 Outer diameter to 4”.. will this fitting work?** A: Read the specs carefully. It is designed to connect 4" to 3" dia hose. ## Customer Reviews ### ⭐⭐⭐⭐⭐ excelente *by M***A on 11 December 2024* Produto fabricado com qualidade ### ⭐⭐⭐⭐⭐ Perfect fit. *by C***L on 17 December 2025* ### ⭐⭐⭐⭐⭐ Good deal *by P***N on 17 January 2026* ## Frequently Bought Together - POWERTEC 70145 4-Inch to 3-Inch Reducer - Daisypower Dryer Vent Window Kit, Adjustable Window Vent Kit with Outdoor Dryer Vent Cover,4 Inch Hood for Exhaust Ventilation - VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower for Hydroponics Grow Tent --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/631450528-powertec-70145-4-inch-to-3-inch-reducer](https://www.desertcart.ro/products/631450528-powertec-70145-4-inch-to-3-inch-reducer) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-04-25*