SKU: 38980157436

HeatFlo Flex Extension Kit 60" Length HTFLO-EK-4.5 F4578 For Direct Vent Fireplaces

Sale price$202.05 Regular price$224.50
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Ships within 48 hours · Estimated delivery Jun 20 - Jun 25

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Description

HeatFlo Flex Extension Kit 60" Length HTFLO-EK-4.5 F4578 For Direct Vent FireplacesThe HeatFlo Extension Kit is required when the distance from the bottom of the register to the top of the appliance exceeds 70". See Fireplace Framing Specifications in the Installation and Operation Manual. READ ALL THE STEPS BEFORE STARTING THE INSTALLATIONKit Includes4 ea. 4 1 2 Diameter Flex Vent, 60 Compressed (approx. 3: 1 expansion ratio)4 ea. Flex Connector32 ea. Self Tapping Screws1 ea. Instruction SheetKit To Be Used with Below Options:

HeatFlo Flex Extension Kit 60" Length HTFLO-EK-4.5 F4578 For Direct Vent Fireplaces
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
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SKU: 38980157436

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4.1 ★★★★★
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Verified Purchase
Mark Taylor
Dallas, US
★★★★★ 5
Great fit deep pockets
Size: Queen
Fits a deep queen mattress really well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
J
Verified Purchase
Jean
Cuba, US
★★★★★ 1
Fit
Size: Queen
Would not stay on the bed
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Reviewed in the United States on April 23, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Good fit
Size: Queen
Covered the mattress well. It was not noisy. Sheets are wee bit oversized and the the cover helps keep the sheets from sliding around. Kids are older so it’s more for the pets. I do recommend it.
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Reviewed in the United States on March 2, 2026
J
Juliana
Birmingham, US
★★★★★ 4
Durable protection
Size: King
I've been using the Beckham Hotel Collection Mattress Protector for about a month now, and I find the cleaning process quite straightforward. I simply toss it in the washing machine on a gentle cycle, then tumble dry it on low, and it comes out without any issues of shrinking or tearing. However, I do find it a bit tricky to handle during spills or accidents. Since the protector is only leak-resistant and not fully waterproof, I’ve had instances where liquid seeped through to my mattress, so it needs to be removed immediately. For added protection, I highly recommend using this mattress protector in combination with a mattress pad. Overall, it fits well, provides peace of mind, and proves to be durable. I would recommend it for those without pets or kids, as it offers leak-proof rather than waterproof protection.
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Reviewed in the United States on January 24, 2026
T
Verified Purchase
TC Hendrix
West Palm Beach, US
★★★★★ 5
Worth it!
Size: Twin XL
Great product and well made. Ordered two XL Twins.
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Reviewed in the United States on March 20, 2026

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