--- product_id: 57868153 title: "Tap Magician Valve Cartridge Spline Gauge teeth Measuring size Finder Plumbers" brand: "tap magician" price: "$38.99" currency: USD in_stock: true reviews_count: 8 category: "Tml" url: https://www.desertcart.us/products/57868153-tap-magician-valve-cartridge-spline-gauge-teeth-measuring-size-finder store_origin: US region: United States of America --- # Credit card size portability Precision spline measurement Durable stainless steel build Tap Magician Valve Cartridge Spline Gauge teeth Measuring size Finder Plumbers **Brand:** tap magician **Price:** $38.99 **Availability:** ✅ In Stock ## Summary > 🔧 Measure like a pro, replace with confidence! ## Quick Answers - **What is this?** Tap Magician Valve Cartridge Spline Gauge teeth Measuring size Finder Plumbers by tap magician - **How much does it cost?** $38.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/57868153-tap-magician-valve-cartridge-spline-gauge-teeth-measuring-size-finder) ## Best For - tap magician enthusiasts ## Why This Product - Trusted tap magician brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pocket-Sized Power:** Ultra-slim, credit card-sized design fits effortlessly in your toolkit or wallet. - • **Time-Saving Accuracy:** Eliminate costly errors by instantly matching the correct cartridge size every time. - • **Instant Spline Identification:** Quickly measure 18, 20, 24, and 28 spline teeth sizes without guesswork. - • **Trusted British Craftsmanship:** From the world’s largest tap cartridge range, ensuring reliability and quality. - • **Complete Measurement Guide Included:** Comes with a handy card and wallet for easy storage and foolproof usage. ## Overview The Tap Magician Valve Cartridge Spline Gauge is a compact, stainless steel tool designed for plumbers and handymen to quickly and accurately identify tap cartridge spline sizes (18, 20, 24, 28 teeth). Its credit card size ensures easy portability, while its trusted British design guarantees precision and durability, making it an essential time-saving addition to any professional’s toolkit. ## Description Spline finder tool designed by Tap Magician. Identifies the most common spline / number of teeth and the diameter. Has 18, 20, 24, and 28 spline holes with different diameters. If you are changing cartridges regularly then this is a must have tool for your bag in order to identify the correct replacement part. Review: Spline Gauge - Really useful tool to measure the diameter and number of teeth on a tap cartridge. Saves time from trying to count the teeth and ensure you purchase the correct replacement part. Came with a wallet to store it in and a useful card showing you how to take the various measurements to make sure you get the right spare part. Good price and looks well made. Review: Measures splines - If you want to know what splines your tap spindle has, this works. If you want to know the time, it doesn't Does the job its designed to do well - what more do you want? ## Features - This is the Ultimate Plumbers tool and is a must for any Plumber or handyman that regularly replaces tap cartridges. - The Tap Magician Spline Gauge is very unique - It has been designed by us to be a really useful tool, it is credit card size, and each hole is marked by the number of teeth and the spline diameter. - Tap Magician are a Trusted British Company - We stock the worlds largest range of Quarter and Half turn tap cartridges ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B079VKTWX1 | | Best Sellers Rank | 217,824 in DIY & Tools ( See Top 100 in DIY & Tools ) 447 in Tap Cartridges | | Brand | Tap Magician | | Customer Reviews | 4.5 out of 5 stars 154 Reviews | | Item Dimensions | 15 x 2 x 20 millimetres | | Item Weight | 20 Grams | | Item dimensions L x W x H | 15 x 2 x 20 millimetres | | Item weight | 20 Grams | | Manufacturer | Tap Magician | | Manufacturer Part Number | cfafb077-7e92-4bc0-8ae8-5239116fb56d | | Material | Stainless Steel | | Number of items | 1 | | Unit Count | 1.0 count | | Unit count | 1.0 count | ## Product Details - **Brand:** Tap Magician - **Item dimensions L x W x H:** 15 x 2 x 20 millimetres - **Item weight:** 20 Grams - **Manufacturer:** Tap Magician - **Material:** Stainless Steel ## Images ![Tap Magician Valve Cartridge Spline Gauge teeth Measuring size Finder Plumbers - Image 1](https://m.media-amazon.com/images/I/51nOApRyDGL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Spline Gauge *by M***R on 23 August 2024* Really useful tool to measure the diameter and number of teeth on a tap cartridge. Saves time from trying to count the teeth and ensure you purchase the correct replacement part. Came with a wallet to store it in and a useful card showing you how to take the various measurements to make sure you get the right spare part. Good price and looks well made. ### ⭐⭐⭐⭐⭐ Measures splines *by K***R on 6 January 2024* If you want to know what splines your tap spindle has, this works. If you want to know the time, it doesn't Does the job its designed to do well - what more do you want? ### ⭐⭐⭐⭐⭐ Tap Valve identifier *by G***Y on 16 June 2022* This is a handy piece of kit, i work as a handyman and im not a plumber but i come across many different types of ceramic disc valve types that need changing, many have had handles forced onto the splines but with this piece of kit i can identify the spline count before removing the valve and order a replacement or check stock before removing and going to a merchants. Saving me time and money. ## Frequently Bought Together - Tap Magician Valve Cartridge Spline Gauge teeth Measuring size Finder Plumbers - Spline Finder - Tap Valve Cartridge Gauge Teeth Measuring Size Finder for Plumbers - 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool --- ## 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.us/products/57868153-tap-magician-valve-cartridge-spline-gauge-teeth-measuring-size-finder](https://www.desertcart.us/products/57868153-tap-magician-valve-cartridge-spline-gauge-teeth-measuring-size-finder) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-28*