--- product_id: 17764961 title: "Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread" brand: "griftan" price: "€ 197.04" currency: EUR in_stock: true reviews_count: 8 category: "Griftan" url: https://www.desertcart.be/products/17764961-acetylene-cylinder-regulator-protector-safety-cap-3-1-2-x store_origin: BE region: Belgium --- # Fine 3-1/2" x 11TP thread precision fit Durable Griftan powder-coated steel Meets DOT, OSHA & MSHA safety standards Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread **Brand:** griftan **Price:** € 197.04 **Availability:** ✅ In Stock ## Summary > 🛡️ Lock in safety, unlock peace of mind. ## Quick Answers - **What is this?** Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread by griftan - **How much does it cost?** € 197.04 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/17764961-acetylene-cylinder-regulator-protector-safety-cap-3-1-2-x) ## Best For - griftan enthusiasts ## Why This Product - Trusted griftan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Valve Protection:** Heavy-duty cap guards your cylinder valve from impact damage during transport and storage. - • **Precision Fine Thread Fit:** Secure 3-1/2" x 11TP threading ensures a snug, leak-proof seal for modern acetylene cylinders. - • **Effortless Transport Ready:** Designed for use with the valve closed, making compliance with transportation laws seamless and stress-free. - • **Certified Safety Compliance:** Built to exceed DOT, OSHA, and MSHA regulations—because your workspace deserves the highest safety standards. - • **Trusted Industrial Standard:** UL Listed and favored by professionals, this cap is a must-have for any serious industrial or welding environment. ## Overview The Griftan Acetylene Cylinder Regulator Protector Safety Cap features a fine 3-1/2" x 11TP thread for a precise fit on modern acetylene cylinders. Engineered to meet stringent DOT, OSHA, and MSHA safety standards, this UL-listed cap protects cylinder valves from damage during transport and storage. Its durable powder-coated steel construction ensures long-lasting performance, making it an essential safety accessory for industrial and welding professionals. ## Description Acetylene gas cylinder safety cap. This will work with acetylene cylinders with FINE threads which most cylinders are now. This cylinder cap will protect the cylinder valve in case of the cylinder falling. The thread size on this is 3-1/2" X 11TP 1 X6-7/8".UL Listed. To comply with the Department Of Transportation requirement, the main valve must be in the off position in transportation. The Griftan safety cap can be used for transportation with the valve closed. Review: Worked great - Worked Great Review: Great product, packaged poorly - Product is great. Packaging was horrible. I bought 4 of these and all that was used for padding was some of the inflated plastic bags. They were all popped leaving no protection so the powder coating is chipped off around the rim. These do what they’re supposed to even though they’rea little chipped. ## Features - Fine thread 3-1/2" X 11TP 1 X 6-7/8" - Griftan safety cap can be used for transportation with the valve closed. - Fits 3-1/2 Inch Collar - Makes work areas safer where high pressure cylinders are used - Meets DOT, OSHA and MSHA requirements ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00I4Z5HAQ | | Best Sellers Rank | #218,088 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #392 in Protective Caps | | Customer Reviews | 4.4 4.4 out of 5 stars (181) | | Date First Available | February 14, 2013 | | Installation Method | gas-welding | | Item Package Quantity | 1 | | Item Weight | 3.45 pounds | | Manufacturer | Griftan | | Part Number | AC-12 | | Product Dimensions | 6 x 1 x 1 inches | | Size | 3-1/2 in. | ## Images ![Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread - Image 1](https://m.media-amazon.com/images/I/51o1Lk7hHJL.jpg) ![Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread - Image 2](https://m.media-amazon.com/images/I/61AFp3Bu-QL.jpg) ![Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread - Image 3](https://m.media-amazon.com/images/I/51JlOf-0z1L.jpg) ![Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread - Image 4](https://m.media-amazon.com/images/I/81TOdSaeLbL.jpg) ## Questions & Answers **Q: Can these be used on other types of gases such as nitrogen** A: Check with you gas supply to see what threads they use on the gas bottles there are several types **Q: Will this work on a Type B Acetylene cylinder?** A: No, the collar on the cap is too large. B cylinders are exempt from requiring a cap and most do not have threads.Hope this helps. Ram Welding Supply 1-800-374-9353 **Q: Is this style osha approved?** A: It is D.O.T approved, not sure about OSHA. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked great *by K***S on February 13, 2025* Worked Great ### ⭐⭐⭐⭐⭐ Great product, packaged poorly *by D***D on November 7, 2019* Product is great. Packaging was horrible. I bought 4 of these and all that was used for padding was some of the inflated plastic bags. They were all popped leaving no protection so the powder coating is chipped off around the rim. These do what they’re supposed to even though they’rea little chipped. ### ⭐⭐⭐⭐⭐ Worth the little it costs to be safe *by C***. on October 23, 2021* It works great I have one on my home shop set. I have one at work also. Work set up is a Harris gauge set. Home shop has a Victor edge 2.0. Both gauges fit no problem in the open side spaces. ## Frequently Bought Together - Acetylene Cylinder Regulator Protector Safety Cap 3-1/2 x 12, Fine Thread - Griftan Gas Cylinder Regulator Protector Safety Cap Fine Thread 3-1/8 x 11 - Western Enterprises#QDB10, QUICK CONNECT SET FOR TORCHES --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/17764961-acetylene-cylinder-regulator-protector-safety-cap-3-1-2-x](https://www.desertcart.be/products/17764961-acetylene-cylinder-regulator-protector-safety-cap-3-1-2-x) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-09-21*