| IT1960 | 3.50/4.00-8 A/V TUBE (S/O) | £4.97 |
| IT2000 | 2.50/2.75 x 10 S/V TUBE | £3.08 |
| IT2001 | 2.50/2.75 x 10 A/V TUBE | £3.27 |
| IT2005 | 3.00/3.50 x 10 S/V TUBE | £4.39 |
| IT2014 | 3.00/3.50 x 10 A/V TUBE | £4.66 |
| IT2015 | 3.50/4.00 x 10 S/V TUBE | £4.76 |
| IT2016 | 100/80 x 10 A/V TUBE | £5.70 |
| IT2017 | 120/300-90 x 10 A/V TUBE | £6.47 |
| IT2060 | 3.00/3.25/3.50 x 12 TUBE | £5.01 |
| IT2062 | 80/100 x 12 TUBE | £5.20 |
| IT2063 | 120/130-70 x 12 A/V TUBE | £5.78 |
| IT2064 | 130/60 x 13 TUBE | £6.16 |
| IT2065 | 130/140-90 x 15 TUBE | £6.93 |
| IT2080 | 2.00/2.25 x 14 TUBE | £3.83 |
| IT2100 | 2.75/3.00 x 14 TUBE | £4.95 |
| IT2101 | 4.10 x 14 TUBE | £5.54 |
| IT2111 | 2.50/2.75 x 16 TUBE | £4.39 |
| IT2120 | 3.00/3.25 x 16 TUBE | £5.39 |
| IT2140 | 3.25/3.50 x 16 TUBE | £5.78 |
| IT2160 | 4.50/5.10 x 16 TUBE | £6.74 |
| IT2165 | 3.50/4.00 x 17 TUBE | £6.59 |
| IT2260 | 4.50/5.10 x 17 TUBE | £7.39 |
| IT2310 | 3.00/3.25 x 18 TUBE | £5.58 |
| IT2330 | 3.50/4.00 x 18 TUBE | £6.01 |
| IT2340 | 4.00/4.50-18 TUBE | £6.76 |
| IT2341 | 4.00/4.50 x 18 TUBE | £7.65 |
| IT2380 | 2.75/3.00 x 19 TUBE | £5.51 |
| IT2381 | 3.25/3.50 x 19 TUBE | £6.20 |
| IT2382 | 4.00/4.50 x 19 TUBE | £7.12 |
| IT2410 | 3.50/4.00 x 19 TUBE | £6.68 |
| IT3200 | 2.25/2.50 x 17 TUBE | £3.86 |
| IT3220 | 2.75/3.00 x 17 TUBE | £5.24 |
| IT3221 | 3.00/3.25 x 17 TUBE | £4.79 |
| IT3240 | 3.25/3.50 x 17 TUBE | £5.20 |
| IT3290 | 2.50/2.75 x 18 TUBE | £5.04 |
| IT3300 | 2.75/3.00 x 18 TUBE | £4.74 |
| IT3320 | 3.25/3.50 x 18 TUBE | £6.01 |
| IT3400 | 90/90 x 21 TUBE | £5.81 |
| IT3401 | 2.75/3.00 x 21 TUBE | £6.16 |