--- product_id: 306048355 title: "ProTemp S 25 25W Thermostatic Safety Aquarium Heater with Protective Basket" brand: "jbl" price: "$53.20" currency: USD in_stock: true reviews_count: 5 category: "Jbl" url: https://www.desertcart.us/products/306048355-protemp-s-25-25w-thermostatic-safety-aquarium-heater-with-protective store_origin: US region: United States of America --- # 25W precise heating power ±0.5°C temperature accuracy 2mm quartz glass safety ProTemp S 25 25W Thermostatic Safety Aquarium Heater with Protective Basket **Brand:** jbl **Price:** $53.20 **Availability:** ✅ In Stock ## Summary > 🔥 Keep your aquatic world perfectly cozy — no fish left behind! ## Quick Answers - **What is this?** ProTemp S 25 25W Thermostatic Safety Aquarium Heater with Protective Basket by jbl - **How much does it cost?** $53.20 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/306048355-protemp-s-25-25w-thermostatic-safety-aquarium-heater-with-protective) ## Best For - jbl enthusiasts ## Why This Product - Trusted jbl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Versatile:** Slim 21cm profile fits aquariums up to 15L+ with full submersion capability for flexible placement. - • **Built-In Safety Shield:** Protective basket prevents fish burns while the quartz glass ensures durability and stability. - • **Precision Heat Control:** Dial in your perfect 20-34°C aquatic climate with ±0.5°C accuracy for thriving tropical life. - • **Effortless Installation:** Plug-and-play design with suction cups and horizontal mounting options for seamless setup. - • **Smart Overheat Protection:** Automatic power cut-off if water level drops or heater is removed, safeguarding your ecosystem. ## Overview The JBL ProTemp S 25W Aquarium Heater delivers precise, reliable temperature control between 20°C and 34°C, ideal for tropical fish and cold-blooded pets. Featuring a robust 2mm quartz glass build with a protective basket, it ensures safety and durability. Easy to install with suction cups and horizontal mounting, it includes smart overheat protection that cuts power if water levels fall. Compact and fully submersible, it’s designed to maintain optimal aquatic conditions effortlessly. ## Description Jbl'S Range Of Protemp S Aquarium Heater Range Includes 25W, 50W, 100W, 150W, 200W And 300W Models To Cater For A Range Of Aquarium Sizes. Most Tropical Aquarium Fish Feel Comfortable With A Water Temperature Ranging Between 24°C And 26°C. The Life Functions Of Cold-Blooded Animals Sink With Falling Temperatures Making Providing The Right Aquarium Temperature A Priority When Keeping A Tropical Aquarium. By Providing The Correct Water Temperature Through The Use Of An Aquarium Heater Such As The Jbl Protemp S You Will Ensure Problem-Free Food Intake And A Smooth Functioning Of Their Metabolism. Easy To Install The Protemp S Heaters Simply Slot Into The Included Heater Guard Complete With Suction Cups. Pre-Select The Desired Water Temperature Using The Temperature Dial Then Immerse The Heater Into The Aquarium At Least To The Indicated “Min. Water Level“ Line. The Control Lamp Indicates When The Heater Is Connected To The Power Supply For Easy Visual Confirmation. The Heater Maybe Mounted Horizontally If Required. Jbl’S Safety Heater Thermostat Ensures An Ideal Temperature Transfer In The Range Between 20°C - 34°C. With The Help Of The Dial A Control Accuracy Of +/- 0.5°C Is Ensured. The Maximum Attainable Temperature Depends On The Water Volume And The Difference In Temperature To The Surroundings. The Protective Basket In Which The Heater Is Embedded Prevents The Fish From Being Scorched. The Heater Is Watertight, Can Be Immersed To A Depth Of 100 Cm And, With Its 2 Mm Strong Safety Quartz Glass, Is Very Stable. If The Water Level Sinks Or The Heater Is Removed From The Water, A Safety Protection Device In The Heater Interrupts The Electric Current And Prevents Overheating. Jbl Protemp S Heater Range: Jbl Protemp S 25W Suitable For Aqu. Review: Compre este calentador para mantener templaditas a mis tortugas en invierno pues vivo en una zona muy muy fria y las tortugas están en una habitación que no posee calefacción. Primero lo probé sin mis tortugas y en unos 4 litros de agua lo fui graduando progresivamente. Inicialmente el Agua estaba a 15.7 ºC y en una hora y media subió hasta los 21.0ºC. Fui aumentando la temperatura progresivamente e iba cumpliendo todos los objetivos. Lo traslade a mi acuario de unos 15 litros y ahí sube la temperatura pero no tanto. Para que os hagáis una idea tengo a las tortugas sin tapa y la temperatura exterior es de 9 ºC, lo tengo programado para que caliente a 26ºC para que el agua alcance los 20.0ºC. Es muy buena compra, MUY BUENA. Tiene un protector que impide a las tortugas quemarse y los mas importante de todo, PUEDE COLOCARSE SUMERGIDO TOTALMENTE, YO LO TENGO SITUADO DE MANERA HORIZONTAL EN EL FONDO DEL ACUARIO. Review: Top Gerät ## Features - Easy to use and install - Strong 2mm safety quartz glass with protective basket - Precise temperature setting dial with temperature range from 20-34C ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001G0HM7W | | Best Sellers Rank | #43,084 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,336 in Aquarium Accessories | | Brand Name | JBL | | Color | white | | Customer Reviews | 4.3 4.3 out of 5 stars (1,137) | | EU Spare Part Availability Duration | 4 Years | | Global Trade Identification Number | 04014162604217 | | Included Components | Corded Electric | | Item Length | 21 Centimeters | | Item Type Name | Aquarium Equipment | | Item Weight | 0.27 Kilograms | | Manufacturer | EFNT4 | | Material Type | Glass | | Unit Count | 1 Count | | Wattage | 25 watts | ## Product Details - **Brand:** JBL - **Colour:** white - **Item length:** 21 Centimeters - **Material:** Glass - **Wattage:** 25 watts ## Images ![ProTemp S 25 25W Thermostatic Safety Aquarium Heater with Protective Basket - Image 1](https://m.media-amazon.com/images/I/71vPlhyvaIL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***L on 13 November 2019* Compre este calentador para mantener templaditas a mis tortugas en invierno pues vivo en una zona muy muy fria y las tortugas están en una habitación que no posee calefacción. Primero lo probé sin mis tortugas y en unos 4 litros de agua lo fui graduando progresivamente. Inicialmente el Agua estaba a 15.7 ºC y en una hora y media subió hasta los 21.0ºC. Fui aumentando la temperatura progresivamente e iba cumpliendo todos los objetivos. Lo traslade a mi acuario de unos 15 litros y ahí sube la temperatura pero no tanto. Para que os hagáis una idea tengo a las tortugas sin tapa y la temperatura exterior es de 9 ºC, lo tengo programado para que caliente a 26ºC para que el agua alcance los 20.0ºC. Es muy buena compra, MUY BUENA. Tiene un protector que impide a las tortugas quemarse y los mas importante de todo, PUEDE COLOCARSE SUMERGIDO TOTALMENTE, YO LO TENGO SITUADO DE MANERA HORIZONTAL EN EL FONDO DEL ACUARIO. ### ⭐⭐⭐⭐⭐ Review *by F***S on 16 February 2026* Top Gerät ### ⭐⭐⭐⭐ Review *by C***O on 13 February 2024* tient fait son travail ## Frequently Bought Together - JBL ProTemp, S25 - JBL FilterStart, Bacteria for the activation of new and cleaned filters for freshwater and marine aquariums, liquid - JBL ProScan Water Analysis by smartphone - The new generation --- ## 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/306048355-protemp-s-25-25w-thermostatic-safety-aquarium-heater-with-protective](https://www.desertcart.us/products/306048355-protemp-s-25-25w-thermostatic-safety-aquarium-heater-with-protective) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-13*