Through-Hull

A threaded bronze, nylon or stainless steel shaft passes through a hole in the bottom surface of the hull. Choice of styles: external football-shaped head with water flow smoothed by a fairing block that also corrects for the deadrise (sideways slope of the hull); or round mushroom head thru-hulls, either semi-flush or flush mounted. They are most challenging to install, but likely to provide best signal quality. Displacement power and sailboats generally use thru-hulls.



 
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Koden TD501B 50kHz 1kW Transducer
£300.00 £652.80 Ex VAT: £250.00
Koden TD501B 50kHz 1kW with Steel Sole Plate
£318.00 £540.00 Ex VAT: £265.00
M180 50/200kHz Transducer
£2,135.32 Ex VAT: £1,779.43
M188LH CHIRP Ready Transducer with Bare Wire
£2,593.22 Ex VAT: £2,161.02
R109LH CHIRP Ready Transducer with Bare Wire
£3,989.84 Ex VAT: £3,324.87
R109LHW Wide Beam CHIRP Ready Transducer with Bare Wire
R109LM CHIRP Ready Transducer with Bare Wire
£4,188.62 Ex VAT: £3,490.52
R409LWM Ultra Wide CHIRP Ready Transducer with Bare Wire
R509LH CHIRP Ready Transducer with Bare Wire
£5,422.25 Ex VAT: £4,518.54
R509LHW Wide Beam CHIRP Ready Transducer with Bare Wire
R509LM CHIRP Ready Transducer with Bare Wire
£5,958.77 Ex VAT: £4,965.64
Seiwa B150M CHIRP Transducer
£412.32 Ex VAT: £343.60
Seiwa B175L CHIRP Transducer
£1,030.04 Ex VAT: £858.37
Seiwa B75H CHIRP Transducer
£826.10 Ex VAT: £688.42
Seiwa B75L CHIRP Transducer
£826.10 Ex VAT: £688.42
Seiwa B75M CHIRP Transducer
£861.58 Ex VAT: £717.98
Simrad/Lowrance B150M CHIRP Transducer
£512.90 Ex VAT: £427.42
Simrad/Lowrance B175HW Wide Beam CHIRP Transducer
Simrad/Lowrance B75H CHIRP Transducer
£931.88 Ex VAT: £776.57
Simrad/Lowrance B75M CHIRP Transducer
£1,017.90 Ex VAT: £848.25
SS175H Mix & Match CHIRP Transducer
£1,376.22 Ex VAT: £1,146.85
SS175HW Wide Beam Mix & Match CHIRP Transducer
£1,776.43 Ex VAT: £1,480.36
SS175L Mix & Match CHIRP Transducer
£1,660.36 Ex VAT: £1,383.63
SS175M Mix & Match CHIRP Transducer
£1,432.70 Ex VAT: £1,193.92
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