1230K91 - 1230K96: Black phenolic screw caps With 14B rubber liner Autoclavable Ideal for culture work 1230L89 - 1230L94: Tear-off unlined aluminum seals This seal can be completely removed and contents readily poured from bottle

NiMH battery not subject to memory effect Environment safe Long autonomy allows > 3000 cycles at full plunger travel Fast charging (< 1.5 hours )Conforms to Energy Star® electrical requirements