Inline Water Heaters
On this page you will find the following popular Inline Water Heaters:
- ETH 300 In-Line Heater UL 300W f/16mm & 5/8″ Hose
- Eemax EMT2.5 “Mini-Tank” Electric Water Heater
- Walk In Tub Acrylic 10 jet Air and 12 jet Hydro Dual Massages 1.5KW In-line Water Heater Ozone Sterilization Thermostatic Control Valve Spout Hand Shower 2 Copper 2″ 80 seond Drains Left or Right Side Door White ETL Certified 29.5″ x 55″ x 40″ Lifetime Warranty For Door and Seal
- ETH 200 In-Line Heater UL 200W f/12mm & 1/2″ Hose
- Jacuzzi S750000 RapidHeat In-Line Heater For Whirlpools
- Walk in Tub Acrylic 10 Jet Air and 12 Jet Hydro Dual Massages 1.5kw In-line Water Heater Ozone Sterilization Thermostatic Control Valve Spout Hand Shower 2 Copper 2″ Fast 80 Second Drains Left or Right Side Drain White 29.5″ X 55″ X 40.5″ ETL Certified
- ETH 201 In-Line Heater UL 200W f/16mm & 5/8″ Hose
- Zuma Inline Water Heater 120V
ETH 300 In-Line Heater UL 300W f/16mm & 5/8″ Hose
ETH Heater. The first and unique external heather for aquariums with the exclusive PTC technology. The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product.
- Suitable for marine and tropical aquariums
- Easy to use
- High precision electronic temperature control
- For external use
- 5/8 inch hose
Rating:
(out of 5 reviews)
List Price: $ 63.99
Price: $ 52.99
ETH 300 In-Line Heater UL 300W f/16mm & 5/8″ Hose Reviews

Bigger than I suspected it would be, but it works fabulously. It does have 3/8″ ID connectors which was not convenient for all my other 1/2″ OD stuff so I had to make a trip to the hardware store. Other than that – it’s doing a great job!

I am a long time fish keeper now specializing in discus. I have owned just about every brand of heater in my over thirty years in the hobby. No heater I have even owned is comparable to this one. It is quite simply far better than any other aquarium heater. Easy to set, accurate, holds temperatures extremely stable. It must be used with a canister filter which I notice the Informational Blurb does not include, but if you run a canister filter on your aquarium this is the one to own.
Buy ETH 300 In-Line Heater UL 300W f/16mm & 5/8″ Hose now for only $ 52.99!
Eemax EMT2.5 “Mini-Tank” Electric Water Heater
The Eemax EMT2.5 “Mini-Tank” Electric Water Heater.The Eemax EMT2.5 “Mini-Tank” Electric Water Heater save water by eliminating the wait for hot water to reach the tap. Simply tap into the cold line and install the heater directly at the sink. No need for costly recirculating lines and pumps. And when you want to eliminate the wait for hot water but need more volume, install the Eemax heater in-line with a larger hot water source, such as a tankless heater or a storage tank heater.Eemax EMT2.5 “Mini-Tank” Electric Water Heater Applications:; Homes, cottages, kitchenettes ; Stores and offices ; RVs and mobile homes ; Restaurants and hotels ; Service stations ; Warehouses and factories ; BoatsEemax EMT2.5 “Mini-Tank” Electric Water Heater Quality Features:; Eliminates the wait for hot water to reach the tap ; Simply tap into the cold or hot water line and install the heater directly at the sink ; No need for costly re-circulating lines and pumps ; Lightweight and compact for “point of use” hot water ; 2.5 and gallon models plug into a standard 110 volt outlet ; 6 gallon requires hard wiring ; Glass-lined tank for longer life.; Lightweight and compact. ; Temperature/pressure relief valve included. ; Plugs into standard 110 volt outlet. Eemax EMT2.5 “Mini-Tank” Electric Water Heater Specifications:; Tank Volume 2.5 gallons; Volts 110/120V; Amps 10A; Phase – single; Heating Capacity 1200W; Dimensions – 17-5/16″ x 11-7/16″ x 11-7/16″ ; Temperatures 65-155;F; Operating Pressure 150psi; Recovery Time (60-150;F) 25 minutes; Weight 18 lbs ; Water Connections 1/2″ NPT* Operating pressure minimum: 25psi* Operating pressure maximum: 150psi* The voltage, amperage, and circuit breaker specifications must be met for this heater to function. Please make sure all requirements are met before purchasing this heater. Manufacturer’s start up procedures must be observed.
- Eemax
- EMT2.5
- Electric Tank Water Heaters
- White
Price: $ 173.14
Walk In Tub Acrylic 10 jet Air and 12 jet Hydro Dual Massages 1.5KW In-line Water Heater Ozone Sterilization Thermostatic Control Valve Spout Hand Shower 2 Copper 2″ 80 seond Drains Left or Right Side Door White ETL Certified 29.5″ x 55″ x 40″ Lifetime Warranty For Door and Seal
Actual Size: 29 ½ W x 55 L x 40 ½ H (inches)
Shipping Size (In Crate): 32 W x 60 L x 48 H (inches)
Net Weight: 220 lbs
Shipping Weight: 275 lbs
Water Capacity: Approx. 60 gallons
To overflow unoccupied
Included with Ellas Deluxe Walk In Tub:
1. White colored, high quality cast acrylic, easy-to-clean, gloss finish tub shell
2. 10 therapeutic air massage jets
(0.5HP pump)
3. 12 therapeutic hydro massage jets
(1HP pump) 900 Watts
4. Low threshold step in
5. Anti-slip textured floor
6. 6 adjustable stainless steel heavy duty leveling legs
7. Extra-wide stainless steel and tempered glass door with stainless steel door frame
8. 2 built in grab bars for added safety
9. Wall extension kit to fit standard
60 inch opening
10. Thermostatic control valve in Fahrenheits
11. 1.5 KW in-line water heater to maintain temperature while bathing
12. Ozone Sterilization 12Volts
13. Two 2 inch drains with dual overflow (approx. 80 second drainage time)
14. 2 pneumatic control push on/off switches for air and hydro massage
15. 1 pneumatic control switch for hydro massage flow air rate adjustment
16. Removable 2 front and one end access panels
17. Easy to clean rubber back support
18. Brass chrome plated designer spout, two way diverter, and hand held pull out shower mixer with 6 feet long hose
19. Lifetime limited warranty on stainless steel frame, door, seal, and tub mold. 2 year replacement warranty on fixtures and parts
20. Two ¾ inch water supply lines, 4 feet long connected to valve.
Available Options for G305:
1. Left or right side door/drain
Electrical Requirements for G305:
1. 110-120v, 30amp GFCI
- High quality Acrylic tub shell with 2 front and one end access panels and extension to fit in 5 foot opening.
- Lifetime lim Warranty for the door, shell, frame. 2 year warranty on all parts.
- Two copper 2″ drains with 80 second drainage time – most relaible drainage system in the market!
- 1.5KW in-line water heater, ozone sterilization, 2 grab bars
- Lifetime Warranty For Door and Seal, Shell, Frame, 2 year parts Chicago, IL
List Price: $ 5,999.00
Price: $ 3,599.00
ETH 200 In-Line Heater UL 200W f/12mm & 1/2″ Hose
ETH Heater. The first and unique external heather for aquariums with the exclusive PTC technology. The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product.
- Suitable for marine and tropical aquariums
- Easy to use
- High precision electronic temperature control
- For external use
- 1/2 inch hose
Rating:
(out of 2 reviews)
List Price: $ 59.99
Price: $ 44.99
ETH 200 In-Line Heater UL 200W f/12mm & 1/2″ Hose Reviews

I have been through many traditional tank heaters. This one is by far the best. I especially like the fact that it is hidden with the rest of my equipment. Also keeps the tank at an accurate temp.
Buy ETH 200 In-Line Heater UL 200W f/12mm & 1/2″ Hose now for only $ 44.99!
Jacuzzi S750000 RapidHeat In-Line Heater For Whirlpools
Jacuzzi S750-000 RapidHeat HeaterKeep your whirlpool bath water at the temperature you desire without adding more water.
- Equipped with preset vacuum switch, which prevents operation of heater if pump is not running
- Union adapters included to connect with any 2-Inch pump suction line; 115V
- Includes high-limit switch to guard against overheating
- For use with whirlpools only
- Heater can be field installed on: Amiga, Bianca, Capella, Cetra w/ skirt, Cetra 536, Fresco, Gallery 5 Oval, Gallery 6 Oval
List Price: $ 363.00
Price: Too low to display
Walk in Tub Acrylic 10 Jet Air and 12 Jet Hydro Dual Massages 1.5kw In-line Water Heater Ozone Sterilization Thermostatic Control Valve Spout Hand Shower 2 Copper 2″ Fast 80 Second Drains Left or Right Side Drain White 29.5″ X 55″ X 40.5″ ETL Certified
Actual Size: 29 ½ W x 55 L x 40 ½ H (inches)
Shipping Size (In Crate): 32 W x 60 L x 48 H (inches)
Net Weight: 220 lbs
Shipping Weight: 275 lbs
Water Capacity: Approx. 60 gallons
To overflow unoccupied
Included with Ellas Deluxe Walk In Tub:
1. White colored, high quality cast acrylic, easy-to-clean, gloss finish tub shell
2. 10 therapeutic air massage jets
(0.5HP pump)
3. 12 therapeutic hydro massage jets
(1HP pump) 900 Watts
4. Low threshold step in
5. Anti-slip textured floor
6. 6 adjustable stainless steel heavy duty leveling legs
7. Extra-wide stainless steel and tempered glass door with stainless steel door frame
8. 2 built in grab bars for added safety
9. Wall extension kit to fit standard
60 inch opening
10. Thermostatic control valve in Fahrenheits
11. 1.5 KW in-line water heater to maintain temperature while bathing
12. Ozone Sterilization 12Volts
13. Two 2 inch drains with dual overflow (approx. 80 second drainage time)
14. 2 pneumatic control push on/off switches for air and hydro massage
15. 1 pneumatic control switch for hydro massage flow air rate adjustment
16. Removable 2 front and one end access panels
17. Easy to clean rubber back support
18. Brass chrome plated designer spout, two way diverter, and hand held pull out shower mixer with 6 feet long hose
19. Lifetime limited warranty on stainless steel frame, door, seal, and tub mold. 2 year replacement warranty on fixtures and parts
20. Two ¾ inch water supply lines, 4 feet long connected to valve.
Available Options for G305:
1. Left or right side door/drain
Electrical Requirements for G305:
1. 110-120v, 30amp GFCI
- High quality Acrylic tub shell with 2 front and one end access panels and extension to fit in 5 foot opening.
- Lifetime lim Warranty for the door, shell, frame. 2 year warranty on all parts.
- Two copper 2″ drains with 80 second drainage time – most relaible drainage system in the market!
- 1.5KW in-line water heater, ozone sterilization, 2 grab bars
- Warranty, parts, support by EllasBubbles.com – Chicago, IL.
Rating:
(out of 3 reviews)
List Price: $ 5,999.00
Price: $ 3,599.00
Walk in Tub Acrylic 10 Jet Air and 12 Jet Hydro Dual Massages 1.5kw In-line Water Heater Ozone Sterilization Thermostatic Control Valve Spout Hand Shower 2 Copper 2″ Fast 80 Second Drains Left or Right Side Drain White 29.5″ X 55″ X 40.5″ ETL Certified Reviews

My husband and I just purchased a walk-in tub from Ella’s Bubbles for my mother. She’s 81 and common tasks aren’t as easy for her as they used to be. She has bad arthritis and aching joints, and fell getting out of her bathtub two months ago. We have been so worried about her living by herself since that incident and had to take action. We hated the idea of putting her somewhere and didn’t have the space to move her in with us. On the verge of giving up, our friend told us about walk in bathtubs. We did a lot of research on them and shopped around many stores. We settled on Ella’s for many reasons- the features, the quality, the price, and not to mention how helpful they were in answering all of our questions.
Getting a walk in bath for my mother was the answer to all of our problems. She can safely get in and out of the walk in tub and we don’t have to worry about her slipping and falling anymore. Plus she can stay in her own home where she loves to be! With the air jets and hydro massage features, she even says her joints are aching like they used to. This walk-in bathtub has truly been a blessing to our family.

The Walk-in-Tub is an Ella’s Bubbles tub and we are well pleased to have this walkin-tub and the price was very affordable. The tub is now installed and I did the installation myself with no real problems.
Buy Walk in Tub Acrylic 10 Jet Air and 12 Jet Hydro Dual Massages 1.5kw In-line Water Heater Ozone Sterilization Thermostatic Control Valve Spout Hand Shower 2 Copper 2″ Fast 80 Second Drains Left or Right Side Drain White 29.5″ X 55″ X 40.5″ ETL Certified now for only $ 3,599.00!
ETH 201 In-Line Heater UL 200W f/16mm & 5/8″ Hose
ETH Heater. The first and unique external heather for aquariums with the exclusive PTC technology. The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product.
- Suitable for marine and tropical aquariums
- Easy to use
- High precision electronic temperature control
- For external use
- 5/8 inch hose
Rating:
(out of 2 reviews)
List Price: $ 59.99
Price: $ 43.84
ETH 201 In-Line Heater UL 200W f/16mm & 5/8″ Hose Reviews

My first fish was a little crazy and used to swim frantically around the tank banging into the walls. Turns out he smashed the glass heater and the rest (along with the fish) is history. Went to the “in-line” heater version after that and this heater works great. Use it in a 30 gallon, acrylic tank.
Buy ETH 201 In-Line Heater UL 200W f/16mm & 5/8″ Hose now for only $ 43.84!
Zuma Inline Water Heater 120V
Zuma Inline Water Heater 120V Designed to maintain a consistent water temperature during extended bathing.
Price:
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