[1] Meaning of letters in the trade name: 
    K – Kuching International 
    A – Restricted flow 
    H – Free flow 
    O – Front outlet 
    R – Rotary 
    
    The trade names may include the following suffixes: 
    A - "A" type discs 
    B - "B" type discs 
    E - "E" type discs 
    H – "H" type discs
    J - Joystick 
    K - "K" type discs
    M – Noise Reducer 
    N – "N" type discs
    R – "R" type discs 
    S – "S" type discs
[2] XXXX indicates any combination of suffixes containing four or less characters:
    A - Restricted flow
    A - "A" type discs
    B - "B" type discs
    E - "E" type discs
    H - Free flow
    H - "H" type discs
    J - Joystick
    K - "K" type discs
    M - Noise Reducer
    R - "R" type discs
    S - "S" type discs
    The suffix A has two possible meanings, either restricted flow or A-type discs.  These
    suffixes can be used in combination.  When used separately, if A is the first suffix
    used,  the A is for restricted flow.  If A comes after the first suffix, then A-type
    discs are used in the cartridge.
[3] May be sold with cartridge models K405AB, K405AR, K405AE, K405AA, K405AH, K405ABM,
    K405ARM, K405AEM, K405AAM or K405AHM.
[G] Product complies with NSF/ANSI 61 Annex G, NSF/ANSI 372 and conforms with lead content
    requirements for “lead free” plumbing as defined by California, Vermont, Maryland, and
    Louisiana state laws and the U.S. Safe Drinking Water Act due to take effect January
    2014.