removed and replaced with gun drilled slick joint 32 see fig1 the desired chemical may then be injected past the apparatus 10 and into the formation at a point below the apparatus 10 alternatively the seal 137 may be removed and the upper plug 190 left in place in this case the chemical fluid enters the tubing above the ball valve 170 if the flapper 158 is closed fluid will then be injected above the flapper 158 an advantage of the embodiment described herein is that the same housing may be utilized for various chemical injection options in fig1 it should be understood that each of the ports 402 404 406 and 408 may be used as an input port while ports 410 412 and 414 are bleed ports for corresponding input lines four ports 420 shown in dashed lines are equally spaced about the upper housing and provide for passage of fluid into and out of the protector housing 110 six keyways 422 indicate the relative position of the torque pin 128 previously disclosed fig1 is a horizontal cross sectional view through the center of ball 170 in the closed position as previously noted the ball 170 comprises a pair of plate like legs as shown having apertures for receiving projections of the cutter plate 176 cutter plate 176 is formed by right hand segment 452 and left hand segment 454 which segments together form the stop for the lower portion 192 of the ball operator mandrel 164 as shown in fig3 ball 170 is interconnected to ball operator mandrel portions 456 and 458 with pins 174 as previously described the relationship of the ball 170 and ball operator housing 189 is depicted in fig1 the relative position of.