Flat bottom, short neck These flasks are not suitable for use under vacuum or pressure.
Nom. cap. ml
QFF50/2S QFF50/3S QFF100/2S QFF100/3S QFF100/4S
QFF100/5S QFF150/2S QFF150/3S QFF150/5S
QFF250/2S QFF250/3S QFF250/4S QFF250/5S QFF500/2S
QFF500/3S QFF500/4S QFF500/5S QFF1L/3US QFF1L/4S
QFF1L/5S QFF2L/4S QFF2L/5S
50 50
100 100 100
100 150 150 150
250 250 250 250 500
500 500 500
1000 1000
1000 2000 2000
Socket size
19/26 24/29 19/26 24/29 29/32
34/35 19/26 24/29 34/35
19/26 24/29 29/32 34/35 19/26
24/29 29/32 34/35 24/29 29/32
34/35 29/32 34/35
Approx. Approx. overall height mm
length mm
neck
80 85 95
100 100
105 105 110 115
115 120 125 125 135
140 145 155 170 165
175 210 215
10 10 10 15 15
15 10 15 10
10 10 10 10 15
15 15 20 25 20
20 25 20
Flat bottom, medium neck These flasks are not suitable for use under vacuum or pressure.
Nom. cap. ml
QFF150/3M 150 QFF250/3M 250
Socket size
24/29 24/29
Round bottom, two necks
Centre neck and one angled side neck. The axis of the side neck meets the axis of the centre neck at the bottom of the flask. The 'septum' side necks have a parallel o.d. of 19mm and i.d. of 15.4mm and are designed for use with SW505-40 allowing safe liquid introduction by syringe.