Description
Boat part number 1117563 is a new R-4.2 flexible air duct from HVAC Premium, part number 4SFLX . Commonly used on Tiara Yachts , part number 3285300, but may be used on other boats.
This duct is constructed out of aluminum foil with fiberglass insulation. It measures approximately 4″ Dia. x 25′ L overall per manufacturer specification.
Specifications:
- Boat Manufacturer: Tiara Yachts
- Part Number: 3285300
- Part Manufacturer: HVAC Premium
- Part Number: 4SFLX
- Material: Aluminum Foil / Fiberglass
- Color: Silver
- Overall Dimensions: 4″ Dia. x 25′ L
![Shadow-Caster Accent Lighting Flex Strip 8′ Terminated w/20′ of Lead Wire[SCM-AL-LED-8]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/shadow-caster-accent-lighting-flex-strip-8-terminated-w-20-lead-wire-scm-al-led-.webp)
![Ancor 24-22 Gauge Heat Shrink Step-Down Multi-Wire Connectors – 25-Pack[320025]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/ancor-24-22-gauge-heat-shrink-step-down-multi-wire-connectors-25-pack-320025.webp)
![Dometic 25 Insulated Flex R4.2 Ducting/Duct – 4″ [9108549910]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/dometic-25-insulated-flex-r4-2-ducting-duct-4-9108549910.webp)
![Xantrex C-Series Solar Charge Controller – 40 Amps [C40]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/xantrex-c-series-solar-charge-controller-40-amps-c40.webp)
