For the best Gemaire experience, please update your web browser.

K-Flex 6RXLO048038 - Insul-Lock® DS With Overlap, 3/8" ID X 1/2" W X 72", 420'

Item: 6RXLO048038
MFR: 6RXLO048038
What’s the price?
Sign in or register for pricing.

Your Order Templates
Save products for later, or create order templates to quickly re-buy items for routine jobs.

Add To Order Template

Inventory At Nearby Branches



INSUL-LOCK® DS (Double Seal) is a flexible closed-cell elastomeric insulation tube product used to conserve energy and prevent condensation on piping applications. It is pre-slit with a factory-applied pressure sensitive modified-acrylic adhesive with scrim reinforcement on the seam surface and a flexible PVC overlap tape with acrylic adhesive for doubled seam security. The system reduces installation time and costs, and ensures a strong, durable seal. The product's closed-cell structure creates exceptional thermal properties (k-value of 0.245 at 75F and wvt of 0.03 perm-in) that protect against moisture penetration in applications within a -70°F to +220°F temperature range.

INSUL-LOCK® DS is widely used in the HVAC/R and plumbing markets for its cold weather flexibility, durable skin surface, exacting manufacturing tolerances and lasting performance. It is available in 6' lengths in wall thicknesses ranging from 3/8"* to 2".

INSUL-LOCK® DS is non-porous, non-fibrous and resists mold, fungal and bacterial growth. For added protection, it is protected with an EPA-approved antimicrobial agent.

INSUL-LOCK® DS is GREENGUARD certified under the Children and Schools classification, is approved through supervision by the Factory Mutual Research Corporation, and is 25/50-rated when tested to ASTM E 84 standards.


NameK-Flex 6RXLO048038 - Insul-Lock® DS With Overlap, 3/8" ID X 1/2" W X 72", 420'
Gemaire Item Number6RXLO048038
Manufacturer Product Number6RXLO048038
SKU - PIM Number1371467988412
ERP Number373146
Unit of MeasureEA
Weight0.2 Pounds (Lb)
Length72.0 Inches (In)
Width1.1 Inches (In)
Height1.1 Inches (In)
Country of OriginUSA
Flame/Smoke RatingASTM E84 - 25/50
Insulation Nominal I.D.3/8"
Iron Pipe Nominal Size1/8"
Wall Thickness1/2"
UV ResistantYes
IncludesProduct and technical support
ApplicationHVAC / Refrigeration
ApprovalsUL, FM, Greenguard
CompositionSelf-Seal Closed Cell Flexible Elastomeric Foam Insulation
Copper Tube Size (OD)3/8"
For Use WithK-Flex Insulation System
FunctionsThermal Insulation
StandardsASTM C534
Temperature Range-297°F to 220°F (-182.7°C to 104.4°C)
Green Environmental AttributeSaves Energy
GEM - Case Quantity


Parts List