PharmaKeep® packets 

PharmaKeep Packet KH Type (Oxygen Only no moisture):

KH-20: Can absorb at least 20 cu. cm. of oxygen
400 SEALED PharmaKeep Oxygen absorbing Packets Food Grade, 400 Pack KH-20(G/BR
ONLY HAVE KH-20 PACKETS. SEE BELOW FOR THE DIFFERENCE IN OTHER OPTIONS BEFORE ORDERING. 

PharmaKeep packets are available in standard oxygen absorbing form, as well as two-in-one moisture and oxygen absorbing configuration.

PharmaKeep oxygen absorbing packets (PharmaKeep KH) and oxygen and moisture absorbing packets (PharmaKeep KD or KC) are available in two sizes, based on oxygen absorbing capacity. Specifications are as follows:

PharmaKeep Packet KH Type (Oxygen):
KH-20: Can absorb at least 20 cu. cm. of oxygen

PharmaKeep Packet KD Type (Oxygen and Moisture):
KD-10: Can absorb at least 10 cu. cm. of oxygen. With silica gel fill, can absorb at least 0.07 gram of water per packet.
KD-20: Can absorb at least 20 cu. cm. of oxygen. With silica gel fill, can absorb at least 0.15 gram of water per packet.

PharmaKeep Packet KC Type (Oxygen and Moisture):
KC-10: Can absorb at least 10 cu. cm. of oxygen. With calcium oxide fill, can absorb at least 0.07 gram of water per packet.
KC-20: Can absorb at least 20 cu. cm. of oxygen. With calcium oxide fill, can absorb at least 0.15 gram of water per packet.