Thermaflex® R-KD duct is a thermally insulated, fully lined, UL 181 Class I flexible air duct designed for efficient installation and operation in outdoor cooling and heating systems of low and medium pressure. It is available in standard 25-foot lengths. Because of its extreme flexibility and good weathering characteristics, Thermaflex® R-KD is particularly suitable for add-on mobile home remote air conditioning, for connecting double wide units as crossover duct, and for use in modular building systems. Thermaflex RK-D complies with HUD Mobile Home Construction and Safety Code Part 3280.715, Chapter II of 24 CFR. It provides an economical means for handling misalignment between system components and ducting around obstacles where fabricated and fitted ducts are difficult and costly to install.
FEATURES AND BENEFITS
Reduced total installed cost fast, economical installation
Underwriters Laboratories listed UL 181 Class I Air Duct. Also complies with HUD Mobile Home Construction and Safety Code Part 3280.715, Chapter II of 24 CFR; NFPA Standards 90A and 90B, and most local, state and federal standards or codes
Factory applied extra thick thermal insulation blanket complies with HUD/FHA minimum property standard; also HUD Mobile Home Construction and Safety Code
Large diameter, heavy, spring steel wire helix assures dimensional stability, resists mechanical abuse and provides more efficient air delivery
Core constructed of multiple layers of strong polyester film encapsulating a heavy corrosion-resistant spring steel helix
Inner core oversized for quick instillation
Outward cast of heavy steel spring steel helix keeps duct core from shrinking up inside insulation and jacket resulting in less waste
Labor savings and reduced waste result in lower installed costs
Quality R-KD installations produce referrals that increase volume and profits
Available in certified R-4.2 thermal values
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov
10.4 Pounds (lbs)
8 Inches (In)
11.375 Inches (In)
Country of Origin
11.375 Inches (In)
UL Listed - USA & CAN
NFPA 90 A and 90 B
Laminated Polyester duct liner is permanently bonded to a corrosion-resistan spring steel wire helix. Also supporting a thick blanket of fiberglass insulation and fiberglass scrim vapor barrier is an outer jacket of heavy Black polyethylene.
**NU-CALGON GIFT CARD OFFER valid March 1, 2019 - April 30, 2019. Excludes special pricing. Offer cannot be combined with other offers or programs. While supplies last. No rainchecks allowed. Not valid on previous purchases. Management reserves the right to modify or end this promotion at anytime. All products not available in all areas. Account must be active and in good standing with CE, as determined by CE’s credit department prior to and during the promotion period. Giftcertificates.com voucher will be distributed within 60 days of the conclusion of the promotional term. Returns of eligible merchandise will be subject to deduction of valuation of voucher. Eligible accounts will be notified by telephone or email.
‡Ductless Stock Up and Save offer valid thru May 31, 2019 at participating CE locations. Account must be active and in good standing condition to qualify for terms. Excludes special pricing and all accessories. Special quotes, OEM parts & job pricing excluded. Not valid on previous purchases. Offer cannot be combined with other offers or programs. Management reserves the right to modify or end this promotion at any time without notice. Orders must be placed and taken delivery by May 31, 2019.