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  Our Catalog   Gardening & Lawn Care   Greenhouses & Accessories

Greenhouses & Accessories - 19 - Mega Sale! Save up to 25%


Mega Sale! Up to 25% off on Greenhouses & Accessories at Knock Knock. Top brands include MRT SUPPLY, GSV Store, Alapaste, RTWAY, Pannow, LBZE, pinnacleT1, KJ Home, Agfabric, VINGLI, Outsunny, Auténtico, SKEMiDEX, Ainfox, Weatherguard, & The Felt Store. Hurry! Limited time offers. Offers valid only while supplies last.



MRT SUPPLY 7' x 3' x 2.6' Backyard Portable Greenhouse with Ebook
MRT SUPPLY 7' x 3' x 2.6' Backyard Portable Greenhouse with Ebook
In Stock
$65.98

ean: 7426923678585,

This open "walk in" portable greenhouse utilizes lightweight, yet sturdy, PVC coverings built over a powder-coated steel frame. The combination of these two elements is an incredibly durable final product that can be moved from location to location, ...


GSV Store 7'x3'x3' Mini Greenhouse Portable Gardening Flower House Plants Yard Hot Tunnel
GSV Store 7'x3'x3' Mini Greenhouse Portable Gardening Flower House Plants Yard Hot Tunnel
In Stock
$49.99

ean: 7426885826284,

This open "walk in" portable greenhouse utilizes lightweight, yet sturdy, PVC coverings built over a powder-coated steel frame. The combination of these two elements is an incredibly durable final product that can be moved from location to location, ...


Alapaste Pop Up Backyard Greenhouse Cover,Mini Greenhouse Indoor Outdoor Gardening Flowerpot Cover Backyard Flower Shelter for Outdoors,Home Plant Green House Garden Cover,21”x21”x31”
Alapaste Pop Up Backyard Greenhouse Cover,Mini Greenhouse Indoor Outdoor Gardening Flowerpot Cover Backyard Flower Shelter for Outdoors,Home Plant Green House Garden Cover,21”x21”x31”
In Stock
$48.27
$37.13
You Save: 23%

mpn: XA829A11-937-1614013971, ean: 0192585561097,

✭Description:✭This Mini Greenhouse offers the perfect solution for those smaller gardens that cannot accommodate a conventional greenhouse. It can protect your plants from too much heat or cold, shield plants from dust and gale, and help to keep ...


RTWAY Mini Greenhouse, Small Pop Up Greenhouse Plant Covers Indoor Outdoor Gardening Backyard Flower Shelter, 28'' L x 28'' W x 31'' H
RTWAY Mini Greenhouse, Small Pop Up Greenhouse Plant Covers Indoor Outdoor Gardening Backyard Flower Shelter, 28" L x 28" W x 31" H
In Stock
$29.99

ean: 0192585563664,

Features: 1.This portable pop up greenhouse cover is perfect for extending your growing season and protecting your plants. 2.The mini greenhouse promotes and maintains high humidity levels to create a superior growing environment. 3.It's can protects...


Pannow Mini Pop up Greenhouse, PVC Indoor Outdoor Backyard Greenhouse Cover, Small Portable Gardening Plant Cover Garden Flower Shelter for Vegetables Herbs Flowers - 27.5'' x 27.5'' x 31.5''
Pannow Mini Pop up Greenhouse, PVC Indoor Outdoor Backyard Greenhouse Cover, Small Portable Gardening Plant Cover Garden Flower Shelter for Vegetables Herbs Flowers - 27.5" x 27.5" x 31.5"
In Stock
$51.05
$39.27
You Save: 23%

mpn: XA829A11-144-1530398161, ean: 0192585566535,

Description:- This Mini Greenhouse offers the perfect solution for those smaller gardens that cannot accommodate a conventional greenhouse. It can protect your plants from too much heat or cold, shield plants from dust and gale, and help to keep out ...


Mini Pop up Greenhouse Small Indoor Outdoor Gardening Flowerpot Cover Backyard Flower Shelter 27''x27''x31''
Mini Pop up Greenhouse Small Indoor Outdoor Gardening Flowerpot Cover Backyard Flower Shelter 27"x27"x31"
By LBZE
In Stock
$57.47
$44.21
You Save: 23%

mpn: BIP039KTT19U14XDN, ean: 0192585993508,

This open "walk in" portable greenhouse utilizes lightweight, yet sturdy, PVC coverings built over a powder-coated steel frame. The is an incredibly durable final product that can be moved from location to location, fitting in tight spaces as availab...


pinnacleT1 Pop up Greenhouse Plant Covers,Small Indoor Outdoor Gardening Flowerpot Cover Backyard Flower Shelter 27''x27''x31''
pinnacleT1 Pop up Greenhouse Plant Covers,Small Indoor Outdoor Gardening Flowerpot Cover Backyard Flower Shelter 27"x27"x31"
In Stock
$51.99
$39.99
You Save: 23%

mpn: 4L1017BK1Z57KIT3T, ean: 0192585392202,

Features:- This portable pop up greenhouse cover is perfect for extending your growing season and protecting your plants.- The mini greenhouse promotes and maintains high humidity levels to create a superior growing environment. It's can protects pla...


KJ Home Portable Mini 8 Shelves Walk In Greenhouse 4 Tier Green House Gardening Flower Plants Outdoor Yard Mini Hot Green House
KJ Home Portable Mini 8 Shelves Walk In Greenhouse 4 Tier Green House Gardening Flower Plants Outdoor Yard Mini Hot Green House
In Stock
$64.99

ean: 0691608971993,

The growth of flowers needs a stable environment. If you love your flowers and care about them, choose our greenhouse. This portable, walk-in greenhouse is perfect for plants protection and growth. Flowers in it can enjoy sunbathing and grow healthy ...


KJ Home 9'x3'x3' Portable Greenhouse with 3 Zipper Door Gardening Flower Plants Yard Mini Hot Green House
KJ Home 9'x3'x3' Portable Greenhouse with 3 Zipper Door Gardening Flower Plants Yard Mini Hot Green House
In Stock
$52.90

ean: 0691608971986,

This open portable greenhouse utilizes lightweight, yet sturdy, PVC coverings built over a powder-coated steel frame. The combination of these two elements is an incredibly durable final product that can be moved from location to location, fitting in...


Agfabric 6.3Mil Plastic Covering Clear Polyethylene Greenhouse Film UV Resistant for Grow Tunnel and Garden Hoop, Plant Cover&Frost Blanket for Season Extension, 12x25ft
Agfabric 6.3Mil Plastic Covering Clear Polyethylene Greenhouse Film UV Resistant for Grow Tunnel and Garden Hoop, Plant Cover&Frost Blanket for Season Extension, 12x25ft
In Stock
$46.59

ean: 0649870595157,

Agfabric Greenhouse Films, also known as agricultural plastic, poly-film and greenhouse plastic, are ideal for your single and double layer greenhouse applications, rated for 5 year use and enjoys five advantages:1. Use high-grade olefin raw material...


VINGLI 12x7x7 Ft Walk-in Outdoor Greenhouse Large Plant Gardening Hot House Flower Tent Commercial Home Backyard Canopy with Vents
VINGLI 12x7x7 Ft Walk-in Outdoor Greenhouse Large Plant Gardening Hot House Flower Tent Commercial Home Backyard Canopy with Vents
In Stock
$94.99

ean: 0611890871214,

US STOCK! Creating a professional growth tent for plants to live better is quite a necessity. We're willing to provide you this 12′x7′x7′Heavy Duty Greenhouse Plant Gardening Dome Greenhouse Tent. Thanks to its premium materials as well as exqu...


Outsunny 7'x3'x2.6' Portable Backyard Flower Garden Greenhouse
Outsunny 7'x3'x2.6' Portable Backyard Flower Garden Greenhouse
In Stock
$42.99
$32.19
You Save: 25%

mpn: 01-0468, ean: 0700729272558,

This open "walk in" portable greenhouse utilizes lightweight, yet sturdy, PVC coverings built over a powder-coated steel frame. The combination of these two elements is an incredibly durable final product that can be moved from location to location, ...


4' X 7' Grey Garden Shed Craft Lawn Tools Bicycles Pool Supplies Storage House Patio Yard Backyard Décor 2 Sliding Door 2 Ventilation Window Steel Frame Construction Corrosion Resistant
4' X 7' Grey Garden Shed Craft Lawn Tools Bicycles Pool Supplies Storage House Patio Yard Backyard Décor 2 Sliding Door 2 Ventilation Window Steel Frame Construction Corrosion Resistant
In Stock
$389.99

mpn: Does Not Apply, ean: 0766970817214,

This is our brand new tool house with dark grey appearance and beige roof that is perfect for you to place your tools. It is designed with two sliding doors and two windows for your convenience and comfort using. This item is strong and stable for it...


SKEMiDEX---8.2x6.2Ft Greenhouse Aluminum Frame All Weather Walk-In Heavy Duty Polycarbonate. You can put it in your garden, lawn, backyard, and even in your terrace, deck and balcony
SKEMiDEX---8.2x6.2Ft Greenhouse Aluminum Frame All Weather Walk-In Heavy Duty Polycarbonate. You can put it in your garden, lawn, backyard, and even in your terrace, deck and balcony
In Stock
$525.08

ean: 0689524853783,

⭐⭐⭐⭐⭐✔️UNIQUE DESIGN! A Double Window And Door With Magnetic Catch Keep Air Flowing, Helping You Control The Temperature And Humidity In Your Greenhouse. The Aluminum Frame Is Durable, Maintenance Free, And Rust Resistant Allowing You T...


Ainfox 8FT X 10FT Steel Shed Tools Storage, Utility for Outdoor Garden Backyard Lawn Warm
Ainfox 8FT X 10FT Steel Shed Tools Storage, Utility for Outdoor Garden Backyard Lawn Warm
In Stock
$549.99

mpn: AIFTL5006, ean: 0817739026634,

Feature: Sturdy Steel-Reinforced Construction Galvanized steel in finish for long-lasting use working life can be 10 years and keep stainless Shed kept dry and is resistant to corrosion and rust 2 sliding doors and 4 vents for increased lighting and ...


Outsunny 19.5' Portable Greenhouse Large Walk-In Garden Hot House - White
Outsunny 19.5' Portable Greenhouse Large Walk-In Garden Hot House - White
In Stock
$179.99

mpn: 845-069, ean: 0842525111355,

This Outsunny 19.5' Portable Walk-In Garden Greenhouse is perfect for the home gardening enthusiast who is looking for a way to stay in the soil all year-round. It offers all the protection your plants need to thrive without having to spend a great d...


Greenhouse-Weatherguard Walk In Arched Top Garden Hot House Fully Enclosed - Screend Windows for Ventilation, Zippered Door (8'W x 12'L x 6'6'''H) Mid Size Greenhouse for Backyards or Large Decks and Patios
Greenhouse-Weatherguard Walk In Arched Top Garden Hot House Fully Enclosed - Screend Windows for Ventilation, Zippered Door (8'W x 12'L x 6'6"'H) Mid Size Greenhouse for Backyards or Large Decks and Patios
In Stock
$368.94

mpn: IS 63012, ean: 0760582630124,

Weatherguard Arched Roof Greenhouse - Walk In Backyard Hobby Greenhouse - Triple ridge pole roof system safely supports the heaviest hanging plants. All-steel construction with flex frame design and 1-1/4-inch, 16-gauge steel for stability. 14-gauge ...


Greenhouse 6' x 8' x 7' Portable Aluminum Frame Polycarbonate Durable Support with ebook
Greenhouse 6' x 8' x 7' Portable Aluminum Frame Polycarbonate Durable Support with ebook
In Stock
$849.98

ean: 6604976228228,

This 6'L x 8'W x 7'H Polycarbonate Portable Walk-In Garden Greenhouse is perfect for the home gardening enthusiast who is looking for a way to stay in the soil all year-round. It offers all the protection your plants need to thrive without having to ...


Portable Greenhouse 6' x 4' x 7' Aluminum Frame Polycarbonate Durable Support with ebook
Portable Greenhouse 6' x 4' x 7' Aluminum Frame Polycarbonate Durable Support with ebook
In Stock
$599.98

ean: 6604976228211,

This 6'L x 4'W x 7'H Twin Wall Polycarbonate Portable Walk-In Garden Greenhouse is perfect for the home gardening enthusiast who is looking for a way to stay in the soil all year-round. It offers all the protection your plants need to thrive without ...


Kapmat, White: 9 Oz/Sq Yd, 36'' Wide X 80 Yd Long
Kapmat, White: 9 Oz/Sq Yd, 36" Wide X 80 Yd Long
In Stock
$1,628.60

mpn: F-INVKAPMAT9OZ36INX80YD, ean: 0738726093098,

The Felt Store's Kapmat is perfect for your Greenhouse Pot Benches or in your home garden, where a water irrigation pad is required. This is especially useful for water sensitive plants where plants may need to absorb water from below rather than be ...



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