Thumbnail | Description | Part # / Price |
 | Fixed tube 60, length 23.4 mm | OQOFT60 CAD209 US$204 |
 | Fixed tube 100, length 61.8 mm | OQOFT100 CAD209 US$204 |
 | Fixed tube 140, length 103.0 mm | OQOFT140 CAD209 US$204 |
 | Fixed tube 160, length 122.1 mm | OQOFT160 CAD209 US$204 |
 | Fixed tube 180, length 140.9 mm | OQOFT180 CAD229 US$223 |
 | Fixed tube 200, length 164.8 mm | OQOFT200 CAD229 US$223 |
 | Fixed tube Mini 100, length 18.7 mm | OQOFTM100 CAD408 US$398 |
 | Fixed tube Mini 120, length 23.7 mm | OQOFTM120 CAD408 US$398 |
 | Fixed tube Mini 140, length 29.0 mm | OQOFTM140 CAD408 US$398 |
 | Fixed tube Mini 160, length 34.4 mm | OQOFTM160 CAD408 US$398 |
 | Fixed tube Mini 180, length 39.8 mm | OQOFTM180 CAD408 US$398 |
 | Fixed tube Mini 200, length 45.4 mm | OQOFTM200 CAD408 US$398 |
 | Fixed tube Mini 250, length 59.6 mm | OQOFTM250 CAD408 US$398 |
 | Fixed tube Mini 300, length 74.0 mm | OQOFTM300 CAD408 US$398 |
 | Fixed tube Mini 350, length 88.3 mm | OQOFTM350 CAD408 US$398 |
 | Fixed tube Mini 400, length 102.4 mm | OQOFTM400 CAD408 US$398 |
 | Fixed tube Mini 450, length 116.8 mm | OQOFTM450 CAD408 US$398 |
 | Fixed tube Mini 400, length 131.2 mm | OQOFTM500 CAD408 US$398 |
 | Amplifier 2X | OQO293023 CAD180 US$176 |
 | Amplifier 3X | OQO293043 CAD272 US$265 |
 | Amplifier 4X | OQO293044 CAD272 US$265 |