Login
OASE Heatup Aquarium Heater 300 Watt
OASE Heatup Aquarium Heater 300 Watt
OASE Heatup Aquarium Heater 300 Watt
 Next

OASE Heatup Aquarium Heater 300 Watt

Marsoni M251S
Sale price$66.99
Pay 4 payments of $16.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
OASE Heatup Aquarium Heater 300 WattThe OASE HeatUp line of aquarium heaters are designed for marine and freshwater tanks. For optimal heating, utilize the HeatUp 25 to create uniform temperature levels for your aquarium environment. The control system on the heater allows accurate readjustment of the temperature (+ 6F) and can be adjusted using the included post calibration tool. The temperature scale can be adjusted between 66F 90F. The HeatUp is perfect for submerged use and includes
Easy Shipping

Quick Dispatch:

Your OASE Heatup Aquarium Heater 300 Watt orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your OASE Heatup Aquarium Heater 300 Watt ships.

Need Help?
Questions about OASE Heatup Aquarium Heater 300 Watt, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for OASE Heatup Aquarium Heater 300 Watt in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 478 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Randy Deasy
San Leandro, US
★★★★★ 5
Not to thick or thin well made
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
I bought pink so as not to lose when doing laundry with my daughter who steels all socks lol!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
S
Verified Purchase
Stacey Cohick
Natrona Heights, US
★★★★★ 5
Perfect
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
They were perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
S
Verified Purchase
Susan Brown
Lake Worth, US
★★★★★ 5
Very Comfortable!
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
Very comfortable. Don’t slip off back of heal. Love the colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
C
Verified Purchase
C. V.
San Leandro, US
★★★★★ 5
😊
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
These are really nice except I don’t like all the colors of them so I’m getting different ones same company just different colors. I don’t like the thick ones these are perfect.. 🤩
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
K
Verified Purchase
KDK in Texas
Grantham, US
★★★★★ 3
Pretty Colors to Encourage Me to Walk!
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
Hum. Extra large does not seem extra large. I have a slender but size 10-10.5 foot. Will keep but was hoping for a looser fit. Bought to match an Under Armour walking outfit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

recommand products

NECKLACE || Lex on Paperclip Chain
NECKLACE || Lex on Paperclip Chain
75.95
 Pheasant Creek Retail Services - CamelBak Eddy® Water Bottle, 20oz\25oz
Pheasant Creek Retail Services - CamelBak Eddy® Water Bottle, 20oz\25oz
22.00
 NECKLACE || Samara
NECKLACE || Samara
47.95
 Pheasant Creek Baseball Tee (Unisex)
Pheasant Creek Baseball Tee (Unisex)
18.00
 Pheasant Creek Bella Canvas Drop Shoulder Sweatshirt
Pheasant Creek Bella Canvas Drop Shoulder Sweatshirt
35.00