Description
Boat part number 7700393 is a new straight thru hull from Attwood, part number 68552-1 . Commonly used on Crownline Boats, part number 63070 , but may be used on other boats.
This thru hull connector is constructed out of black composite with a polished stainless steel cap. Designed for use above the waterline per manufacturer. It measures approximately 3 1/4″ Dia. x 5″ L overall and requires an approximate 2 1/8″ Dia. cutout. It has a max hull thickness of approximately 2 1/8″ and a 2″ Dia. barbed hose connection.
See photos for measurements.
Specifications:
- Boat Manufacturer: Crownline
- Part Number: 63070
- Part Manufacturer: Attwood
- Part Number: 68552-1
- Material: Composite / Stainles Steel
- Color: Silver / Black
- Finish: Polished
- Overall Dimensions: 3 1/4″ Dia. x 5″ L
- Cutout Dimensions: 2 1/8″ Dia.
- Max Hull Thickness: 2 1/8″
- Connections: (1) 2″ Dia. barbed


![Xantrex Conext Combox Communication Box f/Freedom SW Series Inverters/Chargers[809-0918]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/xantrex-conext-combox-communication-box-f-freedom-sw-series-inverters-chargers-8.webp)
![Scanpod Helm Pod System – White[SPH-SYSTEM-W]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/scanpod-helm-pod-system-white-sph-system-w.webp)

![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)
![Sudbury Elastomeric Marine Sealant – 10oz Cartridge – White [300]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/sudbury-elastomeric-marine-sealant-10oz-cartridge-white-300.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)
![Presta PACE Heavy Cut Compound – 32oz [133132]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/presta-pace-heavy-cut-compound-32oz-133132.webp)
![Whitecap Teak Lumber – 1/2″ x 1-3/4″ x 72″[60813]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/whitecap-teak-lumber-1-2-x-1-3-4-x-72-60813.webp)