Cell culture flasks available with Nunclon™ D modified surface (culture areas of 25 to 225 cm2) or Collagen I and Poly-D-Lysine coated (culture areas up to 175 cm2). Choose cap: filter caps for continuous venting or vent / close caps. Ergonomic closure enables opening and closing with 1/3 turn and 'Y'-mark allows visual verification of vent position, even when stacked. Angled, wide neck gives easy access to entire growth surface. Graduations are both printed and molded on the side walls. Certified non-pyrogenic and tested for both monolayer formation and cloning efficiency employing primary cells as well as repeating cell lines. - Sterile. - Neck angled. - Material flasks: PS. - Material caps: PEHD. Cell culture flasks available with Nunclon™ D modified surface (culture areas of 25 to 225 cm2) or Collagen I and Poly-D-Lysine coated (culture areas up to 175 cm2). Choose cap: filter caps for continuous venting or vent / close caps. Ergonomic closure enables opening and closing with 1/3 turn and 'Y'-mark allows visual verification of vent position, even when stacked. Angled, wide neck gives easy access to entire growth surface. Graduations are both printed and molded on the side walls. Certified non-pyrogenic and tested for both monolayer formation and cloning efficiency employing primary cells as well as repeating cell lines. - Sterile. - Neck angled. - Material flasks: PS. - Material caps: PEHD.