Cozy Products Cozy Pet Warmer 200 Watt Compact Panel Heater - Safe for Cats and Dogs, Energy Efficient, Eco-Friendly, 19 x 13 x ⅝ Inches, 5 lbs.

PetSafe Extreme Weather Pet Door Large, Easy Install, Insulating, Weather Proof, Energy Efficient, 3 Flap System

PetSafe Extreme Weather Energy Efficient Pet Door - 3 Flap System - For Large Dogs Up to 100 lb

Large Silver Dog Door - Dual Flap Door Mounted Energy Efficient Doggie Door and Shatter Resistant Locking Security Plate - Rugged Aluminum Frame Construction

Vinyl Insulated Pet Patio Door 78" Medium

Gun Dog House Door | Easy Dog Door | Chew Proof, Weather Protected, Energy Efficient | Metal Dog Door |Dog Size 20-120 Lbs | 14”x 18” Frame…

LILYS PET Ac/dc Oxygen Pump,Portable Ultra Silent High Energy Efficient Rechargeable Battery Aquarium Filter Fishing Tank Oxygen Air Bubbles Pump (Double-Headed, White)

Cat Mate Microchip Activated Cat Flap, Exclusive Entry, Simple Installation, 4-Way Manual Locking, Energy Efficient, Draught Excluder with Cat-Preferred Tinted Flap

PetSafe Extreme Weather Energy Efficient Pet Door for Cats and Dogs - Insulated Flap System - Large - Plastic Frame

DaToo Aquarium Air Pump 3 Watt Adjustable Oxygen Pump with 2 Outlets for Fish Tank Ultra Silent High Energy Efficient, 1 Yr Warranty

Perfect Pet The All-Weather Energy Efficient Dog Door, Extra Large, 9.75" x 17" Flap Size

PetSafe Microchip Activated Cat Flap, Exclusive Entry, Easy Install, 4-Way Manual Locking, Energy Efficient, Draught Excluder, Convenient (New Version)

Gun Dog House Door | Easy Big Dog Door | Chew Proof, Weather Protected, Energy Efficient | Metal Dog Door |Dog Size 120-200 Lbs | 18” x 26” Frame

Armor Flex Air Tight Pet Door for Door or Wall (Door Installation, Extra Large)

Dogit Alfresco Dog Water Fountain with Filtration & Energy Efficient LED Light, Large, for Outdoor or Indoor Use, 338 fl. oz., 90200

SunGrow Halfmoon Betta Heater, 10 Watts, for Small Tanks, Fully Submersible Aquarium Heater, Automatically Reaches Preset Temperature, Energy-Efficient Heating Module, Suction Cups Included

Gun Dog House Door | Big Dog Door | Chew Proof, Weather Tight, Energy Efficient | Metal Dog Door | Dog Size 120-200 Lbs | 18”x 28” Frame

InKach Aquarium Oxygen Pump, Energy Efficient Fish Tank Oxygen Air Pump Super Silent 3W/5W (B)

Tetra Pond Debris-Handling Pump, Energy Efficient, UL Listed, Up to 3,000 gallons

XL Silver Dog Door - Single Flap Door Mounted Energy Efficient Doggie Door and Shatter Resistant Locking Security Plate - Rugged Aluminum Frame Construction