41 can be pre attached to end 34 at the factory to create the fig3 form as will be best appreciated from fig5 7 an openable end 21 of the box 12 has a size generally suitable to be press fit onto a chute channel hose or tube in a selected cleaning device 72 a blank 18 has side panels 34 36 38 and 40 the openable end is coverable by the flaps 20 22 26 and 28 the opposite end 17 is constructed from the flaps 42 44 54 and 56 the main flaps 20 and 22 are sized and dimensioned to form teeter totter flaps due to the extra fold back regions between region 22 and 40 and between region 20 and 36 the channels 29 and 31 form the locking tab 16 to form the closing flaps 25 and 27 the flaps 20 and 22 are each initially folded outward away from the center of the box 12 along the score lines 31 and 33 respectively each of the flaps 20 and 22 are then folded back inward toward the center of the box 12 along the score lines 30 and 32 respectively to form the overhanging edges 25 and 27 the resulting flaps comprise a double layer of material extending horizontally outward from the side of the box 12 gravity and the resilience of the material will cause at least flap 22 to pivot to the closed position when it is not held up further the resilience of the material will cause flap 20.