Find the lowest price for:       All ProductsHeaters     2.5 (1)   Add a review Hydor Theo Shatter Proof Heater 100 W   Theo Heater 100 watt by Hydor. Patented heating element automatically turns off if water level declines Have a question? Ask the Experts! Set Price Alert Compare Prices Product Spec Member Reviews Recommend to Friends Searched Hydor Theo Shatter Proof Heater 100 W in 150 stores, 41 results found Image Description   Store   Price Theo 100 Watt Heater USED WORKS If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay (auction)   3 Store Reviews   $2.99 (used) Go to Store Theo Hydor 100W Aquarium Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $11.99 (used) Go to Store Theo 100 Watt Submersible Heater - Hydor USA Inc If this item doesn't belong here, click Remove and help us keep our results accurate.   PetBlvd.com   0 Store Reviews   $16.26 Go to Store THEO UL Heater 100W If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $16.49 Go to Store THEO Heater 100Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   everythingreptileinc.com   0 Store Reviews   $16.9 Go to Store Hydor Theo Ul Heater 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   fish.com   0 Store Reviews   $16.99 Go to Store THEO Heater - 100W - UL Listed - 8 7/8 in. - up to 26 Gallon If this item doesn't belong here, click Remove and help us keep our results accurate.   That Fish Place That Pet Place   3 Store Reviews   $17.49 Go to Store Hydor Theo Heater 100 watt for Aquariums If this item doesn't belong here, click Remove and help us keep our results accurate.   Drs. Foster and Smith   7 Store Reviews   $17.79 Go to Store Hydor Theo Submersible Heater-100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   Big Al's Online   0 Store Reviews   $18.49 Go to Store Hydor THEO 100 Watt Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   Gulf Aquaria   1 Store Reviews   $18.99 Go to Store Hydor Theo 100w Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   Aqua Buys   2 Store Reviews   $19.49 Go to Store Hydor Theo 100 Watt Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $19.66 Go to Store Hydor Theo 100 Watt Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   Allpetdepot.com   0 Store Reviews   $19.66 Go to Store Hydor Heater THEO UL 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   Aloha Aquariums   0 Store Reviews   $20.49 Go to Store HYDOR USA INC - THEO 100 WATT SUBMERSIBLE SHATTERPROOF HEATER 8.9" If this item doesn't belong here, click Remove and help us keep our results accurate.   Aquarium Garden   0 Store Reviews   $20.55 Go to Store Theo Shatter-proof Aquarium Heater / Size (100 Watt) If this item doesn't belong here, click Remove and help us keep our results accurate.   GregRobert Pet Supplies   0 Store Reviews   $21.03 Go to Store Theo Heater 100 Watt Ul For Aquariums 9In If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $21.42 Go to Store Hydor THEO 100W SUBMERS HEATER If this item doesn't belong here, click Remove and help us keep our results accurate.   Pets Warehouse   0 Store Reviews   $22.74 Go to Store Hydor Theo 100 Watt UL Listed Submersible Aquarium Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   onlinepetdepot.com   0 Store Reviews   $22.77 Go to Store Hydor THEO Heater 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $23.99 Go to Store Hydor THEO Heater 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   MarineDepot.com   5 Store Reviews   $23.99 Go to Store Hydor THEO Heater 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   Fishy Business   0 Store Reviews   $23.99 Go to Store Hydor Usa Inc Theo 100W Submers Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   SHOP.COM   0 Store Reviews   $24.07 Go to Store Theo 100 Watt Submersible Shatterproof Heater 8.9" If this item doesn't belong here, click Remove and help us keep our results accurate.   AllPetMall.com   0 Store Reviews   $24.87 Go to Store Theo 100 Watt Submersible Shatterproof Heater 8.9" If this item doesn't belong here, click Remove and help us keep our results accurate.   AllPetMall.com   0 Store Reviews   $24.87 Go to Store HYDOR THEO 100 wt submersible fish turtle tank HEATER If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $24.99 Go to Store HYDOR THEO HEATER 100 w NEW Aquarium Heater submersible If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $24.99 Go to Store Hydor THEO Heater 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $25.19 Go to Store Hydor Usa 100 Watt Theo Ul Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   StrictlyPetSupplies.com   0 Store Reviews   $25.69 Go to Store HYDOR THEO HEATER 100W If this item doesn't belong here, click Remove and help us keep our results accurate.   Aquarium Center   0 Store Reviews   $25.99 Go to Store Hydor Theo Aquarium Heaters THEO AQUARIUM HEATER UL, 100 W If this item doesn't belong here, click Remove and help us keep our results accurate.   PetSmart.com   0 Store Reviews   $25.99 Go to Store Theo Shatterproof Heater, 100W If this item doesn't belong here, click Remove and help us keep our results accurate.   Aubuchon Hardware   0 Store Reviews   $26.49 Go to Store Hydor THEO Fish Tank Aquarium Heater 100W Up to 26 gal If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $29.95 Go to Store NEW Hydor USA Inc Theo 100W Submers Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $30.26 Go to Store THEO HEATER 100WATT UL 24 I#038009 If this item doesn't belong here, click Remove and help us keep our results accurate.   Bottings Online   0 Store Reviews   $30.96 Go to Store Hydor Theo Shatterproof Heater 100 Watt - T11202 If this item doesn't belong here, click Remove and help us keep our results accurate.   Underbid   0 Store Reviews   $31.95 Go to Store HYDOR THEO 100W SUBMERS HEATER If this item doesn't belong here, click Remove and help us keep our results accurate.   Peticious.com   6 Store Reviews   $33.04 Go to Store TopDawg Pet Supply Theo 100 Watt Submersible Shatterproof Heater 8.9 If this item doesn't belong here, click Remove and help us keep our results accurate.   Underbid   0 Store Reviews   $33.9 Go to Store Hydor Theo Submersible Heater 100 Watt If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $34.99 Go to Store Theo 100 Watt Submersible Shatterproof Heater 8.9" If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $35.5 Go to Store Theo 100 Watt Submersible Shatterproof Heater 8.9". If this item doesn't belong here, click Remove and help us keep our results accurate.   Pet Crossroads Pet Supplies   0 Store Reviews   $48.02 Go to Store Are we missing a store? Let us know! Something wrong in this page? Let us know! Related products: More Hydor Heaters Other Heaters internal use: spec361